Sure. What an opportunity! MInd you, I'd go as a tourist without any real involvement. (Who'd want to change the course of history?)
Can you imagine standing on the shore as the Mayflower dropped anchor? The feelings of adventure and dread would be palpable.
What about having a cuppa on Everest as Edmund Hillary made his climb? Or crashing through the 4 minute barrier with Roger Bannister?
How would you feel about watching Napoleon, the scourge of Europe, defeated at Waterloo? Or watching the plotters who took down Rasputin?
I'd love to ride along with Genghis Khan, cross the mountains with Alexander, and ford the Rubicon with Caesar.
Go back in time? Oh yeah.
But my first stop would be Belgium in 1915. I'd find my father and persuade him to return to Wales with his cousin. That way he'd never have met my mother and I wouldn't have to answer this question.