Context: Reforestation programs have been a crucial part of managing resources since before the Forest Service was established in 1905. Federal forest management dates back to 1876, when Congress launched the Office of Special Agent within the U.S. Department of Agriculture to gauge the conditions of forests.

Soon after, the Organic Administration Act of 1897 established national forests and improved and protected them while ensuring conditions are favorable to continuous water flow as well as a steady supply of timber.

Tree-planting programs commencing in the national forests in the early 1900s reestablished tree seedlings after massive wildfires.

The Knutson-Vandenberg Act of 1930 established forest-tree nurseries, making it mandatory for timber purchasers to make deposits covering the cost of reforestation and related work within sale boundaries. Ninety years later, this law still ensures reforestation needs are met within timber-sale areas.

https://archive-share.america.gov/america-has-deep-roots-in-reforestation/

Context: he communist conquest completed America’s Vietnam debacle,” wrote H.W. Brands in his, American Dreams, referencing the Fall of Saigon and the ultimate end of American involvement in the Vietnam War. [1] The conflict, during which direct American military action lasted from 1965-1973, was highly controversial and contentious, and claimed the lives of nearly 60,000 American servicemen. [2] Set against the backdrop of America’s Cold War policy of globally containing communism, the unsuccessful and domestically unpopular conflict saw the United States militarily intervene in support of South Vietnam in their war against neighboring communist North Vietnam. After eight years of harsh fighting, and little, if any, true military success, US forces withdrew from Vietnam completely in 1973, and in April of 1975, the North Vietnamese captured the South’s capital city of Saigon, effectively concluding the war. However, while the fighting itself may have ended in the South Vietnamese capital on 30 April 1975, “America’s Vietnam debacle,” was far from complete.

While America’s geopolitical aspect of the Vietnam War ended with the cessation of hostilities in 1975, a domestic development of the war would continue for decades, one that many, including H.W. Brands, neglect to include in their analysis of the conflict: the plight of Vietnam Veterans. Upon returning from the failed war, often brining with them physical disabilities and mental struggles, American servicemen faced persistent hardships, with many finding both inadequate assistance in dealing with those hardships, and a seemingly ungrateful nation. Robert Van Loon had a front row seat to the predicaments of these Veterans. In 1971, after serving in the Army Reserves during the early years of the war, Van Loon began a career at the Department of Veterans Affairs (V.A.), first working as a Benefits Claims Examiner in Buffalo, NY, and then as a Benefits Counselor and Officer-in-Charge in Rochester, NY until retiring in 2001. [3] As a Benefits Counselor, Van Loon dealt personally with Veterans, and he recalls being “inundated” with those who served in Vietnam. [4] “I interviewed and filed claims for many thousands of Vietnam Veterans,” he remembered. [5] As witnessed by Van Loon, throughout the late 1970s and 1980s, the men who had served in what was at the time America’s longest conflict would face struggles of an intensity greater than those faced by any Veterans who had come before. While the war was over for the rest of America, their fight was just beginning.

https://blogs.dickinson.edu/hist-118pinsker/2023/12/08/7067/

Context: The Qingyang event was a presumed meteor shower or air burst that took place near Qingyang in March or April 1490.^([1])^([2]) The area was at the time part of Shaanxi, but is now in Gansu province.^([2]) A 1994 study in the journal Meteoritics tentatively explained this event as a meteor air burst.^([1])

Historical Chinese accounts of the meteor shower recorded many deaths,^([1])^([2])^([3]) although the official Ming dynasty history records the event without reporting the number of victims.^([4]) In the same year, Asian astronomers coincidentally discovered comet C/1490 Y1, a possible progenitor of the Quadrantid meteor showers.^([5])

At least three surviving Chinese historical records describe a shower of rocks,^([2])^([6]) one stating that "stones fell like rain."^([1]) Human fatality estimates in these sources range from more than ten thousand people to several tens of thousands of people.^([1])^([2]) The History of Ming (the official history of the Ming dynasty) contains a report of the event, and other journal records which describe the event are also generally considered reliable.^([6]) However, the History of Ming omits the number of casualties, which therefore has been frequently either doubted or discounted by present-day researchers.^([1])^([3])

Due to the paucity of detailed information and the lack of surviving meteorites or other physical evidence, researchers have been unable to definitively state the exact nature of the dramatic event,^([7]) even examining the possible occurrence of severe hail.^([1]) Kevin Yau of NASA's Jet Propulsion Laboratory and his collaborators have noted several similarities of the Qingyang event to the Tunguska air burst in 1908, which, if it had occurred above a populated area, could have produced many fatalities

https://en.wikipedia.org/wiki/Qingyang_event

Context: The first tomatoes were nothing like the tomatoes we all know:  they were small, transparent and yellow, way too acidic when unripe, and watery and too soft when they were ripe. Not the ideal flavor or texture people expected to be. In simple words tomatoes did not charm the crowds, and for a long time people never got beyond using them as a decorative plant.

It was in France, where the tomato got its nefarius fame. Rich families were the ones who could afford to buy the fruits of the new world, and they did … to just show off. Often cooked and served in containers made of pewter, an alloy made of mostly lead and tin, tomatoes became a major hazard for public health. The acidity of the fruits, reacting with pewter, caused intoxication and death from lead poisoning. Sometimes being rich does not help.  Because tomatoes belong to the deadly nightshades family (botanically known as Solanaceae) like the poisonous mandrake and belladonna, the association with them became the gossip of that time. Soon rumors crossed the French borders to spread everywhere in Europe. Sadly, Solanum Lycopersicum or wolf peach, became the infamous genus name Europeans decided to give the tomato. It was like saying “stay away from it”.

Finally, in the late 1500, tomatoes made it to Italy and long before they conquered Europe, they conquered it. Wait! Italians knew about the poisonous rumors about this new fruit. Superstition, suspiciousness, skepticism, fear were the sentiments that were preventing rich people to eat them or even worse…cook them. On top of that, in 1544, the Tuscan herbalist Pietro Mattioli had the magnificent idea to brand tomatoes as poisonous in his book Herbarium. This added fuel to the fire. “Let’s know more before we eat them” was the wise decision that was made. And Italians had to wait the 1700 and to be in Naples. In simple words it took centuries before tomatoes were finally accepted as a food product.

Neapolitans are concrete people, and they could not accept the theory that eating tomatoes would have sent directly to the Creator! “Guys! The same people who created this ridiculous myth that tomatoes are poisonous are the same people who believed that the Earth was flat!” Fair enough right? Tomatoes started to be cooked in humble terracotta (clay) pots and served in clay or wooden dishes. It was clear that being poor paid! Miraculously, there was no chemical reaction with clay or wood and nobody died. Naples proved that tomatoes were edible if handled properly and from the 1700, when the first tomato sauce got performed there, tomatoes became Italy’s pride in more than 320 heirloom varieties. This ode to tomato is also an ode to Naples and to its farmers, as our most famous and world known cultivar in Italy is the San Marzano, from the Agro Nocerino, at the foot of the Vesuvio mountain.

https://toscanasaporita.com/the-discovery-of-tomato-has-represented-for-the-history-of-cooking-what-the-french-revolution-represented-for-the-human-society-luciano-de-crescenzo-neapolitan-philosopher/

Context: United Nations General Assembly Resolution 2758, titled Restoration of the lawful rights of the People's Republic of China in the United Nations, was adopted on 25 October 1971 to change China's representation in the UN. It recognized the People's Republic of China (PRC) as the only legitimate representative of China to the United Nations, and expelled "the representatives of Chiang Kai-shek" (referring to the then Kuomintang regime as the dominant party in the Republic of China, whose government had retreated to Taiwan from the mainland) from the United Nations.

The Republic of China (ROC) was founded in 1912 in mainland China, and expanded its jurisdiction to Taiwan in 1945.^([1]) In 1945, it became one of the 51 original member states of the United Nations, which was created in 1945. At that time, however, it was embroiled in civil war: the ruling Chinese Nationalist Party, or Kuomintang, was fighting troops led by the Chinese Communist Party (CCP). This lasted until 1949, when Mao Zedong proclaimed the People's Republic of China (PRC) in Beijing and the Nationalists retreated to Taiwan, from which the Empire of Japan had withdrawn in 1945 and to which it would in 1951 renounce all right, title and claim.^([1]) By January 1950 the PRC was in control of mainland China but was unable to capture Taiwan, Penghu, Kinmen or Matsu, and thus these remained Kuomintang-ruled.^([2])^([3])

Although the ROC government continuously claimed that it would one day return to its mainland, by the 1970s, an increasing number of UN members became aware that this government no longer represented the hundreds of million people who lived on the mainland.^([3]) The PRC claimed to be the successor government of the ROC, while the Kuomintang in Taiwan championed the continued existence of the Republic of China. Both claimed to be the only legitimate Chinese government, and each refused to maintain diplomatic relations with countries that have recognized the other.

Between 1950 and 1970, several votes were held regarding the PRC and UN membership, but the votes did not pass. The ROC continued to represent China in the UN until Resolution 2758

Context: Galileo's championing of Copernican heliocentrism was met with opposition from within the Catholic Church and from some astronomers. The matter was investigated by the Roman Inquisition in 1615, which concluded that his opinions contradicted accepted Biblical interpretations.^([14])^([15])^([16])

Galileo later defended his views in Dialogue Concerning the Two Chief World Systems (1632), which appeared to dispute and satirize Pope Urban VIII, thus alienating both the Pope and the Jesuits, who had both strongly supported Galileo until this point.^([14]) He was tried by the Inquisition, found "vehemently suspect of heresy", and forced to recant. He spent the rest of his life under house arrest.^([17])^([18]) During this time, he wrote Two New Sciences (1638), primarily concerning kinematics and the strength of materials.^([19])

Context:

Hospitals- https://engines.egr.uh.edu/episode/991

Hospitals have formed slowly for 2000 years. Doctors of classical Greece tended the sick in their homes. The methodical Romans had systematic, if brutal, means for handling wounded soldiers, but no public houses for sick civilians.

Hospitals were a very altruistic Christian invention. The word itself is all mixed up with the words hotel and hospitality. By the 4th century AD, newly Christianized Romans began running homes for the sick and needy. By the 8th century, the functions of Christian hospitals, or hospices, were highly specialized. Some served the sick, some the needy, lepers, the insane, and orphans.

The new nations of Islam followed suit in the 9th century AD. By the 12th century, the Christian Order of St. John of Jerusalem, and the St. Augustine nuns, had shaped Medieval hospitals, with their diverse functions, into fine institutions.

Deterioration set in as control shifted away from the Church during the late 13th century. Secular hospitals grew increasingly crowded and dirty. Hospitals remained, but the well-to-do didn't use them. Small wonder that, in 1642, Sir Thomas Browne would write,

>For the world, I count it not an inn, but an hospital; and a place not to live, but to die in.

In 1524 Cortes set up the Hospital of Jesus of Nazareth in Mexico City. It's still running. French missionaries built Montreal's Hotel Dieu in 1639. Quakers set up the Philadelphia Almshouse in 1713. It became an insane asylum in 1731, and today it's the Philadelphia General Hospital. But we didn't build a true hospital here until about 240 years ago. In 1751 a Dr. Thomas Bond went to Ben Franklin and asked him to help form one.

Ben Franklin secured funds from the Colonial legislature. A small building went up under the motto, "Take care of him and I will repay thee," from the story of the Good Samaritan. It's now the East Wing of Pennsylvania Hospital.Hospitals have formed slowly for 2000
years. Doctors of classical Greece tended the sick in their homes. The
methodical Romans had systematic, if brutal, means for handling wounded
soldiers, but no public houses for sick civilians.

Orphanages- https://www.britannica.com/topic/Christianity/Care-for-widows-and-orphans

The Christian congregation has traditionally cared for the poor, the sick, widows, and orphans. The Letter of James says: “Religion that is pure and undefiled before God is this: to visit orphans and widows in their affliction.” Widows formed a special group in the congregations and were asked to help with nursing care and other service obligations as long as they did not need help and care themselves.

The church had founded orphanages during the 4th century, and the monasteries took over this task during the Middle Ages. They also fought against the practice of abandoning unwanted children and established foundling hospitals. In this area, as in others, a secularization of church institutions took place in connection with the spreading autonomy of the cities. In Protestant churches the establishment of orphanages was furthered systematically. In Holland almost every congregation had its own orphanage, which was sustained through the gifts of the members.

Human Rights- https://www.hrw.org/legacy/wr2k5/religion/4.htm

This article analyzes the historical sources and forms of human rights in Western legal and Christian traditions, and it identifies key questions about the intersections of Christianity and human rights in modern contexts. The authors identify nine distinctions between different conceptions of rights correlating with at least four types of jural relationships, and they argue that leading historical accounts of human rights attribute “subjective” rights too narrowly to Enlightenment and post-Enlightenment legal thought. Earlier forms of classical Roman law and medieval canon law, and legal norms developed by Protestant reformers of the sixteenth and seventeenth centuries shaped Western human rights regimes in historically important ways, anticipating most of the rights formulation of modern liberals. In response to contemporary scholars who criticize human rights paradigms as inadequate or incompatible with Christian faith and practice, the authors argue that rights should remain a part of Christian moral, legal, and political discourse, and that Christians should remain a part of pluralistic public debates about the appropriate scope and substance of human rights protections.

https://www.cambridge.org/core/journals/journal-of-law-and-religion/article/abs/christianity-and-human-rights-past-contributions-and-future-challenges/A7375ED589F7ACFA0C5C4C179170D448

Context: Socrates was widely hated in Athens, mainly because he regularly embarrassed people by making them appear ignorant and foolish. He was also an outspoken critic of democracy, which Athenians cherished, and he was associated with some members of the Thirty Tyrants, who briefly overthrew Athens’s democratic government in 404–403 BCE. He was arguably guilty of the crimes with which he was charged, impiety and corrupting the youth, because he did reject the city’s gods and he did inspire disrespect for authority among his youthful followers (though that was not his intention). He was accordingly convicted and sentenced to death by poison.

https://www.britannica.com/question/Why-did-Athens-condemn-Socrates-to-death

Context:n 1844, William II of the Netherlands urged Japan to also open the mainland to trade, but was rejected.^([1]) On July 8, 1853, the U.S. Navy sent four warships into the bay at Edo and threatened to attack if Japan did not begin trade with the West. The ships were Mississippi, Plymouth, Saratoga, and Susquehanna of the expedition for the opening of Japan, under the command of Commodore Matthew C. Perry. The expedition arrived on July 14, 1853 at Uraga Harbor (present-day Yokosuka) in Kanagawa Prefecture, Japan.^([2]) Though their hulls were not black, their coal-fired steam engines belched black smoke.

Their arrival marked the reopening of the country to political dialogue after more than two hundred years of self-imposed isolation. Trade with Western nations followed five years later with the Treaty of Amity and Commerce. After this, the kurofune became a symbol of the end of isolation.

https://en.wikipedia.org/wiki/Black_Ships

Context: he Three Sisters (Spanish: tres hermanas) are the three main agricultural crops of various indigenous peoples of Central and North America. The crops are squash, maize ("corn"), and climbing beans (typically tepary beans or common beans). Traditionally, several Native American groups also planted sunflowers on the north edges of their gardens as a "fourth sister".^([1]) In a technique known as companion planting, the maize and beans are often planted together in mounds formed by hilling soil around the base of the plants each year; squash is typically planted between the mounds. The cornstalk serves as a trellis for climbing beans, the beans fix nitrogen in their root nodules and stabilize the maize in high winds, and the wide leaves of the squash plant shade the ground, keeping the soil moist and helping prevent the establishment of weeds.

Indigenous peoples throughout North America cultivated different varieties of the Three Sisters, adapted to varying local environments. The individual crops and their use in polyculture originated in Mesoamerica, where squash was domesticated first approximately 10,000 years ago^([2]), followed by maize and then beans, over a period of 5,000–6,500 years. European records from the sixteenth century describe highly productive Indigenous agriculture based on cultivation of the Three Sisters throughout what are now the Eastern United States and Canada, where the crops were used for both food and trade. Geographer Carl O. Sauer described the Three Sisters as "a symbiotic plant complex of North and Central America without an equal elsewhere".

https://en.wikipedia.org/wiki/Three_Sisters_(agriculture)

Context: nthropological research has suggested that humans "may have evolved to counter-exploit plant neurotoxins". The ability to use botanical chemicals to serve the function of endogenous neurotransmitters may have improved survival rates, conferring an evolutionary advantage. A typically restrictive prehistoric diet may have emphasized the apparent benefit of consuming psychoactive drugs, which had themselves evolved to imitate neurotransmitters.^([34]) Chemical–ecological adaptations and the genetics of hepatic enzymes, particularly cytochrome P450, have led researchers to propose that "humans have shared a co-evolutionary relationship with psychotropic plant substances that is millions of years old."^([35])

^(https://en.wikipedia.org/wiki/Recreational_drug_use)

Context: Battle of the Little Bighorn, (June 25, 1876), battle at the Little Bighorn River in Montana Territory, U.S., between federal troops led by Lieut. Col. George A. Custer and Northern Plains Indians (Lakota [Teton or Western Sioux] and Northern Cheyenne) led by Sitting Bull. Custer and all the men under his immediate command were slain. There were about 50 known deaths among Sitting Bull’s followers.

That spring, under the orders of Lieut. Gen. Philip Sheridan, three army columns converged on Lakota country in an attempt to corral the rebellious bands. Moving east, from Fort Ellis (near Bozeman, Montana), was a column led by Col. John Gibbon. From the south and Fort Fetterman in Wyoming Territory came a column under the command of Gen. George Cook. On May 17 Brig. Gen. Alfred H. Terry headed west from Fort Abraham Lincoln in charge of the Dakota Column, the bulk of which constituted Custer’s 7th Cavalry. On June 22 Terry sent Custer and the 7th Cavalry in pursuit of Sitting Bull’s trail, which led into the Little Bighorn Valley. Terry’s plan was for Custer to attack the Lakota and Cheyenne from the south, forcing them toward a smaller force that he intended to deploy farther upstream on the Little Bighorn River. By the morning of June 25, Custer’s scouts had discovered the location of Sitting Bull’s village. Custer intended to move the 7th Cavalry to a position that would allow his force to attack the village at dawn the next day. When some stray Indian warriors sighted a few 7th Cavalrymen, Custer assumed that they would rush to warn their village, causing the residents to scatter.

Custer chose to attack immediately. At noon on June 25, in an attempt to prevent Sitting Bull’s followers from escaping, he split his regiment into three battalions. He sent three companies under the command of Maj. Marcus A. Reno to charge straight into the village, dispatched three companies under Capt. Frederick W. Benteen to the south to cut off the flight of any Indians in that direction, and took five companies under his personal command to attack the village from the north. That tactic proved to be disastrous. In fragmenting his regiment, Custer had left its three main components unable to provide each other support.

As the Battle of the Little Bighorn unfolded, Custer and the 7th Cavalry fell victim to a series of surprises, not the least of which was the number of warriors that they encountered. Army intelligence had estimated Sitting Bull’s force at 800 fighting men; in fact, some 2,000 Sioux and Cheyenne warriors took part in the battle. Many of them were armed with superior repeating rifles, and all of them were quick to defend their families. Native American accounts of the battle are especially laudatory of the courageous actions of Crazy Horse, leader of the Oglala band of Lakota. Other Indian leaders displayed equal courage and tactical skillCut off by the Indians, all 210 of the soldiers who had followed Custer toward the northern reaches of the village were killed in a desperate fight that may have lasted nearly two hours and culminated in the defense of high ground beyond the village that became known as “Custer’s Last Stand.” The details of the movements of the components of Custer’s contingent have been much hypothesized. Reconstructions of their actions have been formulated using both the accounts of Native American eyewitnesses and sophisticated analysis of archaeological evidence (cartridge cases, bullets, arrowheads, gun fragments, buttons, human bones, etc.), Ultimately, however, much of the understanding of this most famous portion of the battle is the product of conjecture, and the popular perception of it remains shrouded in myth.

https://www.britannica.com/event/Battle-of-the-Little-Bighorn

Context: https://en.wikipedia.org/wiki/LGBTQ_history#Europe

Context: Maurice Ralph Hilleman (August 30, 1919 – April 11, 2005) was a leading American microbiologist who specialized in vaccinology and developed over 40 vaccines, an unparalleled record of productivity.^([2])^([3])^([4])^([5])^([6]) According to one estimate, his vaccines save nearly eight million lives each year.^([3]) He has been described as one of the most influential vaccinologists ever.^([2])^([6])^([7])^([8])^([9])^([10]) He has been called the "father of modern vaccines".^([11])^([12]) Robert Gallo called Hilleman "the most successful vaccinologist in history".^([13]) He has been described by some researchers as having saved more lives than any other scientist in the 20th century.^([14])^([15])

Of the 14 vaccines routinely recommended in American vaccine schedules, Hilleman and his team developed eight: those for measles, mumps, hepatitis A, hepatitis B, chickenpox, Neisseria meningitidis, Streptococcus pneumoniae and Haemophilus influenzae bacteria.^([4])^([7]) During the influenza pandemic in Southern China, his vaccine is believed to have saved hundreds of thousands of lives.^([7])^([15])^([16]) He also played a key role in developing the vaccine for the Hong Kong flu, as well as roles in the discovery of antigenic shift and drift, the cold-producing adenoviruses, the hepatitis viruses, and the potentially cancer-causing virus SV40.^([7])^([3])^([6])^([17])^([18])^([19])

Asian flu pandemic

Hilleman was among the first to recognize that a 1957 outbreak of influenza in Hong Kong could become a huge pandemic. Working on a hunch, after nine 14-hour days he and a colleague determined that it was a new strain of flu that could kill millions.^([6])^([24]) Forty million doses of vaccines were prepared and distributed.^([25]) Although 69,000 Americans died, the pandemic could have resulted in many more deaths in the United States. Hilleman was awarded the Distinguished Service Medal from the American military for his work. His vaccine is believed to have saved hundreds of thousands of lives.^([7])^([16])

In 1968, during the Hong Kong flu pandemic, Hilleman and his team also played a key role in developing a vaccine, and nine million doses became available in 4 months.^([7])^([26])

SV40

Hilleman was one of the vaccine pioneers to warn about the possibility that simian viruses might contaminate vaccines.^([27]) The best-known of these viruses is SV40, a viral contaminant of some of the polio vaccines produced from 1955-1963. This included some produced for both Salk's inactivated virus vaccine and the then relatively new Albert Sabin's oral live attenuated vaccine^([28]).

Mumps vaccine

In 1963, his daughter Jeryl Lynn came down with the mumps. He cultivated material from her, and used it as the basis of a mumps vaccine. The Jeryl Lynn strain of the mumps vaccine is still used. The strain is used in the trivalent (measles, mumps and rubella) MMR vaccine that he also developed, the first approved vaccine to incorporate multiple live virus strains. Like many other vaccines and medications of that time period, the vaccine was tested in children with intellectual disabilities who lived in group homes; this was because, given the poor hygiene and cramped quarters of their accommodations, they were at much higher risk of infectious disease.^([29])

Hepatitis B vaccine

He and his group invented^([4]) a vaccine for hepatitis B by treating blood serum with pepsin, urea and formaldehyde. This was licensed in 1981, but withdrawn in 1986 in the United States and replaced by a vaccine that was produced in yeast. The latter vaccine is still in use. By 2003, 150 countries were using it and the incidence of the disease in the United States in young people had decreased by 95%. Hilleman considered his work on this vaccine to be his single greatest achievement. Liver transplant pioneer Thomas Starzl said "...controlling the hepatitis B virus scourge ranks as one of the most outstanding contributions to human health of the twentieth century...Maurice removed one of the most important obstacles to the field of organ transplantation".^([30])

Later work and life

In his later life, Hilleman advised the World Health Organization. He retired as senior vice president of the Merck Research Labs in 1984 at its mandatory retirement age of 65. He then directed the newly created Merck Institute for Vaccinology where he worked for the next twenty years until his death in 2005.^([31])

At the time of his death in Philadelphia on April 11, 2005,^([21]) at the age of 85, Hilleman was Adjunct Professor of Pediatrics at the University of Pennsylvania in Philadelphia.

Context: As part of the Great Firewall, beginning in 2003, China started the Golden Shield Project, a massive surveillance and censoring system, the hardware for which was provided by mostly U.S. companies, including Cisco Systems. The project was completed in 2006, and is now carried out in buildings with machines operated by civilians and supervised by China's national police force, the Public Security Bureau (PSB, Chinese: 公安局). The main operating procedures of the gatekeepers at the Golden Shield Project include monitoring domestic websites, email, and searching for politically sensitive language and calls to protest. When damaging content is found, local PSB officials can be dispatched to investigate or make arrests. However, by late 2007, the Golden Shield Project proved to operate sporadically at best, as users had long adapted to internet blocking by using proxy servers, among other strategies, to make communications and circumnavigate to blocked content.^([)

https://en.wikipedia.org/wiki/Great_Firewall

Context: Also known as The Astronomer and The Learned, Alfonso X ruled Spain from 1252 until 1284, when he died in Seville.

He was well known among the scientific community as a proponent of astronomy and cosmology based on Ptolemy’s studies. He learned the cosmological sciences of Ptolemy from Arabs; The Alphonsus Crater of the moon is named after Alfonso X as a result. He also prepared the Alfonsine tables, which are astronomical tables that corrected errors in the Toledo Tables, and were in use until the 16th century. Alfonso X has had some famous quotes attributed to him, the most famous was when he learned of Ptolemy’s theory of astronomy, he said “If the Lord Almighty had consulted me before embarking upon Creation, I should have recommended something simpler.”

By Alfonso X’s time, Spain had for some time been a popular place for European scholars to go and study. As a result, translations of texts from all over were being accomplished; the texts being translated were primarily of Arabic origin, focusing on mathematics, astronomy and the Koran, though there were a number of ancient Greek texts that were translated as well. Alfonso X continued this project as well as furthering the production of original Spanish scholarly texts as well. This helped to further the knowledge of the ancients into not only Spain, but to the rest of Europe too. Alfonso X also sponsored the translation of the Jewish Talmud.

Alfonso X welcomed the influences of Christian, Jews and Muslims into his kingdom. He also was a proponent of art and music as well as science. Alfonso X helped to write several Cantigas, or monophonic songs. His collection of 400 Galician songs about the Virgin Mary is considered to be one of his most enduring cultural contributions. He also commissioned the Book of Games, with 98 pages with color drawings depicting the games of the time including Chess, Backgammon, and various Dice games as well as others such as Triga, Hazard, Riffa, and other period games. It is said to be one of the first European works written in a local language, namely Castilian Spanish. Alfonso X’s father, Fernando III had promoted the usage of the Castilian Spanish language, Alfonso X promoted its widespread use throughout Spain, and after his death it evolved to become the modern language of Spanish.

https://banknoteden.com/articles/articles-s/spain-alphonso-x/

Ptolemaic system, mathematical model of the universe formulated by the Alexandrian astronomer and mathematician Ptolemy about 150 CE and recorded by him in his Almagest and Planetary Hypotheses. The Ptolemaic system is a geocentric cosmology; that is, it starts by assuming that Earth is stationary and at the centre of the universe. The “natural” expectation for ancient societies was that the heavenly bodies (Sun, Moon, planets, and stars) must travel in uniform motion along the most “perfect” path possible, a circle. However, the paths of the Sun, Moon, and planets as observed from Earth are not circular. Ptolemy’s model explained this “imperfection” by postulating that the apparently irregular movements were a combination of several regular circular motions seen in perspective from a stationary Earth. The principles of this model were known to earlier Greek scientists, including the mathematician Hipparchus (c. 150 bce), but they culminated in an accurate predictive model with Ptolemy. The resulting Ptolemaic system persisted, with minor adjustments, until Earth was displaced from the centre of the universe in the 16th and 17th centuries by the Copernican system and by Kepler’s laws of planetary motion.

https://www.britannica.com/science/Ptolemaic-system