All former presidents of the United States are bound together for life, but the similarities between two former presidents goes beyond what is normal. Have you ever heard about the Lincoln/Kennedy paradox?

For starters, both Lincoln and Kennedy had previously been boat captains and were also the second children in their family. Both presidents were elected in the year ’60—Abraham Lincoln in 1860, and John F. Kennedy in 1960. They each had three children living with them in the White House and had one child pass away during their presidency.

But that’s just the beginning. President Lincoln had a secretary with the last name Kennedy, while President Kennedy had a secretary with the last name Lincoln. Upon each of their deaths, they were succeeded by vice presidents with the last name Johnson (Andrew Johnson and Lyndon B. Johnson).

Both John Wilkes Booth and Lee Harvey Oswald, the presidents’ assassins, have fifteen letters in their name. Booth shot President Lincoln in a theater and then fled to a warehouse, while Oswald shot President Kennedy from a warehouse, then fled to a theater. These similarities are a bit eerie, right?! It seems as though Lincoln and Kennedy were twins born a century apart.