I am fascinated by the stark differences between election mechanics/strategies/policies of the early United States when compared to today.
In the early days of the US, it was seen as "ungentlemanly" to campaign before a presidential election. I know that Washington, Adams and Jefferson all stayed out of the fray; though perhaps surreptitiously directing subordinates to do the campaigning work.
Now, of course, campaigning for president is a more-than-full-time job.
How long did this difference last? When did it become acceptable to even acknowledge that you want the post?