If you could travel to any time, past or future, what year would you go to what would you learn about

Personally for me I would go to the moon landing on July 20th, 1969. There are so many accusations and conspiracies about if it was real or not. And I would like to find out for myself.

Explanation:

recent news about two years ago indicates that a polish forestry student by chance unearthed at a depth of about 40cm (16 inches), during digging in a damp polish forest he found a 13-page manuscript into a thermos flask.

greek jew marcel nadjari was a aischwitz slave who witnessed how the nazi's built big death chambers and crematoriums and told how he was forced to escort fellow jews to the gas chambers. he accounts on this manuscript how the nazi's disguised this chambers to look like showers. also, he describes this place as a process of extermination from the chambers to the trains arriving to take the bodies.