Mathematician:Johann Heinrich Rahn

Mathematician
Swiss mathematician credited with the first use of the division symbol, $\div$, also known as the obelus, and the therefore sign, $\therefore$.

Nationality
Swiss

History

 * Born: 10 March 1622 in Töss, Switzerland
 * Died: 25 May 1676 in Zürich, Switzerland

Publications

 * 1659: (technically a collaboration with )

Also known as
The Latinised form of his name was Rhonius.