http://www.npr.org/blogs/krulwich/2012/02/07/146534518/rasputin-was-my-neighbor-and-other-true-tales-of-time-travel

”President John Tyler, born in 1790, tenth president of the United States, has two grandsons who are reportedly still alive today. One, Harrison Tyler, lives in Virginia and recently gave an interview to New York magazine. He was asked how someone born in 1790 could still have living grandchildren. Said Harrison:

Well, [President Tyler] was a good man! [laughs] Both my grandfather — the president — and my father, were married twice. And they had children by their first wives. And their first wives died, and they married again and had more children. And my father was 75 when I was born, his father was 63 when he was born. John Tyler had 15 children — eight by his first wife, seven by his second wife — so it does get very confusing.

tiden är en lustig parameter.