This question is becoming strangely common lol
Anyway check these answers from /u/Spoonfeedme and /u/Theghistorian
https://www.reddit.com/r/AskHistorians/comments/2flhhw/how_did_the_region_that_has_developed_into_modern/
https://www.reddit.com/r/AskHistorians/comments/mq2v0n/why_does_romania_have_such_an_enduring_latin/hc2rs0g/
And this one, also from Theghistorian, from just two days ago:
https://www.reddit.com/r/AskHistorians/comments/ra29ql/dacia_was_one_of_the_first_provinces_the_romans/