You would still have the same age, gender, personality, skin color, etc. and you would be able to speak at least one local language and would know basic information of the era and place. Your family, social standing, and such would be randomly picked.
Given that there were 2 world wars in the early 1900s and that I like tech in general I would also choose 12/31/1949. At least I might have a PC sometime in my lifetime and I’d probably live to use it and not be a corpse on some beach somewhere.
Have fun in 'Nam!
Yeah, I was thinking after I posted this what other wars I might get drafted into.