President George Washington famously chose to bow out after two terms, but Trump, 78, might not be so keen on doing so. The fervor of his base might spur him on to run again at the age of 82.

The United States began celebrating its first president when he was still a general. Nearly 300 years since George Washington’s birth, the holiday has morphed into a celebration of the presidency.

On the afternoon of April 30, 1789, George Washington was sworn in as the first president of the United States. Since Washington took his oath of office, Inauguration Day has continued to be an ...