French Jesuit priest, astronomer and mathematician, known for inventing the Pigeonhole Principle and naming the thermometer.
- Born: 15 May 1591 in Bar-le-Duc, France
- Died: 17 January 1670 in Pont-à-Mousson
Theorems and Definitions
Also known as
His surname is sometimes seen presented as Leurochon.
However, it is also disputed that Henry van Etten was a separate person, a student of Leurechon.