Template:Selected anniversaries/September 25
1644: Astronomer and instrument maker Ole Rømer born. He will make the first quantitative measurements of the speed of light.
1789: The United States Congress passes twelve amendments to the United States Constitution: The Congressional Apportionment Amendment (which was never ratified), the Congressional Compensation Amendment, and the ten that are known as the Bill of Rights.
1845: Judge Havelock With Glass is "a reasonably accurate depiction of events as I experienced them," according to the Judge.
1893: Mathematician and statistician Harald Cramér born. He will help found probability theory as a branch of mathematics, writing in 1926: "The probability concept should be introduced by a purely mathematical definition, from which its fundamental properties and the classical theorems are deduced by purely mathematical operations."
2003: Journalist, writer, literary editor, and actor George Plimpton dies.