u/IAMTHECROCODILESES

i just read the song of achilles and now want to read the iliad by homer. I am in the junior high school years, (canada,) and I was wondering if it actually happened. I was taught that it did not really happen, but recently found out that there is no proof for either side, I was hoping to get some more info on the trojan war and achilles and odysseus and the like, perhaps some info on if they really existed. Any help is appreciated!