It's been a long, strange four years. It's also been one of an (unfortunately) historic nature, which is easy to overlook amidst the daily news cycles. Here are ten historic firsts the U.S. has seen under Trump—none of the which we'd seen in the 240 years prior:

1. Trump is the first American president to be impeached on national security grounds.

2. Trump is the first American president to threaten not to recognize the election results, and to refuse to pledge to a peaceful transition of power.

3. Trump is the first American president to try to postpone the election.

4. Trump is the first American president to try to jail his predecessor.

5. Trump is the first American president to call to jail his opponent.

6. Trump is the first American president to call to jail his opponent's family.

7. Trump is the first American president to claim he's been subjected to a "coup" (and a "lynching.")

8. Trump is the first American president to pressure a foreign government for "dirt" on a political rival.

9. Trump is the first American president to solicit and accept covert foreign interference efforts in order to boost his electoral chances.

10. Trump is the first American president to encourage supporters to vote illegally.