History Mystery (from a very old email)

Have  a history teacher explain this----- if they  can.     Abraham  Lincoln was elected to Congress in 1846. John F.. Kennedy was  elected to Congress in 1946. Abraham Lincoln was elected  President in 1860. John F. Kennedy was elected President in  1960. Both were particularly concerned with civil rights. Both wives lost their children while living in the White  House. Both Presidents were shot on a Friday. Both  Presidents were shot in the head Now it gets really  weird. Lincoln 's secretary was named  Kennedy. Kennedy's Secretary was named Lincoln . Both were assassinated by Southerners. Both were  succeeded by Southerners named Johnson. Andrew Johnson, who  succeeded Lincoln, was born in 1808.  Lyndon Johnson, who  succeeded Kennedy, was born in 1908.      John  Wilkes Booth, who assassinated Lincoln, was born in  1839. Lee  Harvey Oswald, who was accused of assassinating Kennedy, was  born in  1939..    Both  assassins were known by their three names. Both names are  composed of fifteen letters. Now hang on to your seat. Lincoln was shot at the theater  named 'Ford'. Kennedy was shot in a car called ' Lincoln ' made  by 'Ford'. Lincoln was shot in a theater and  his assassin ran and hid in a warehouse. Kennedy was shot from a  warehouse and his assassin ran and hid in a theater. Booth  and Oswald were assassinated before their trials. ...  Now, here is where we enter the Twilight Zone        1)  Fold a  $20  bill in half...  2)  Fold again, taking care to fold it exactly as below   3)  Fold the other end, exactly as before   4)  Now, simply turn it over...         What  a coincidence! A simple geometric fold creates a catastrophic  premonition printed on all $20 bills!!! COINCIDENCE?  YOU  DECIDE  As  if that wasn't enough...   Here  is what you've seen...   Firstly The Pentagon on fire...          Then   The  Twin Towers. It  gets even better 9 + 11 = $20!           .