Redirected from 1990s BC
(3rd millennium BC - 2nd millennium BC - 1st millennium BC)
Significant persons:
Inventions, Discoveries, Introductions:
... who are 65 years of age or older. The median age is 49 years. For every 100 females there are 96.9 males. For every 100 females age 18 and over, there are 90.1 ...