What incident/era in the history would to want to see live?

Definitely, not anything like bloody battles. But I'd really like to see the construction of any of the 7 wonders of ancient world. Or be a part of an expedition that would discover Islands like Tahiti or Hawaii, and assimilate with the local culture. It's not like a big historic event, but I think that would be a beautiful, peaceful moment, in the pre-industrial era

I am Okay with what and where I am today

I would choose to live on the mainland during the Cultural Revolution.

I want to go back to my childhood.