[url=http://www.elderscrollsonline.com/en-us/news/post/2013/05/06/ask-us-anything-variety-pack-4]Elves live two to three times as long as humans and the “beast-races” (Orcs, Khajiiti, Argonians). A 200-year-old Elf is old; a 300-year-old Elf is very, very old indeed. Anyone older than that has prolonged his or her lifespan through powerful magic.[/url]

Well, they got the lore all fucked up (Orcs as a beast race?), but it's official!