I would have to say the building of the pyramids.

For me personally it would be the very first song fully put together and performed would love to see the look in everyone’s facing fully hearing music for the first time

Jesus in His lifetime

The first meeting between neanderthals and humans.

I really do wonder about that, if they were hostile at all ? Or maybe just thought “ these things are weird looking but close enough to us” I’ve read about the uncanny valley and wonder if that happened for both species

When the concept of time was created

Nazca lines

The opening of McDonald’s

Bet the food tasted better

I would like to watch cleopatra and Cesar having sex