I've been doing a Marauders-themed fanic lately, so I've been putting some research in.
Lily Evans, James Potter, Sirius Black, and Remus Lupin? They were all born in 1960, graduated from Hogwarts in 1978.
Lily & James got married in 1979, and had Harry in 1980.
In 1981, James & Lily were killed by Voldemort.
They were 21 years old.
How sad is that? They only lived to be 21.
I always thought they were older, especially because of the movies. Omigosh. It makes me super sad.
My story's going to be a tragedy, and I'll be posting the first chapter here, with a link to it on fanfiction.net.