Lifespan 1000 years to 80?

[brewer]

What constitutes a Year, now?

What constituted a year before Gregorian calendar, before the Roman, before the Grecian, before the Hebrew calendar?

What constituted a "year" when Adam was alive?

Had a xtian try to tell me that the old time bible "year" was actually the moon phase. A year back then was actually one month. They will make up anything to make the numbers even kind of work. Just say god and stop trying to justify the fantasy.