Time, It's All Relative

Today's Mindblowing Fact of the, um, Day:

Two grandsons of President John Tyler, who was born in 1790, are still alive. In just two generations down the line, that family touches four centuries.

This interesting article offers a few interesting examples of these "human wormholes" in time. In a week in which the world's last known veteran of World War I passed away, it is incredible to think that widows of American Civil War veterans were still collecting government pensions as recently as 2004, nearly 140 years after that conflict ended.