The Indiana Pi Bill almost declared pi to be 3.2 (Happy Pi Day!)

In 1897, the Indiana legislature nearly passed a bill, known as the Indiana Pi Bill, that would have declared pi to be 3.2.

The bill, written by a physician and an amateur mathematician, never became law due to the intervention of C. A. Waldo, a professor at Purdue University, who happened to be present in the legislature on the day it went up for a vote.