Why Famous: Discovered mathematical logarithms.
Napier also invented the so-called "Napier's bones" and made common the use of the decimal point in arithmetic and mathematics.
He was born on an unrecorded day in Merchiston Tower in Edinburgh, Scotland in 1550.
- 1594-01-29 Mathematician John Napier dedicates his "Plaine Discovery of the Whole Revelation of St. John" to King James VI, predicts end of the world in 1688 or 1700
- John Napier (1555-1617) - Science Hall of Fame, National Library of Scotland