The year the first President of the United States (George Washington) took office.
The French mathematician Augustin-Louis Cauchy (1789-1857) was born with the French Revolution. [Luhn]
Seventeen 89's followed by eighty-nine 17's is a prime of palindromic length. [De Geest]
The year Baptist minister Elijah Craig established a still in Georgetown, Kentucky, and began producing America's first bourbon whiskey from a base of corn.
The largest emirp formed from the sum of two digits
followed from a concatenation of these digits. [Loungrides]
Statehood for North Carolina occurred in an emirp year (1789). [Green]
Consider the concatenation of the first 1789 positive even integers (i.e., 2468101214...357435763578). Half of this number is a 6604-digit probable prime. [Sumpeloh]
(There are 5 curios for this number that have not yet been approved by an editor.)