Most recent change of Number
Edit made on November 29, 2008 by ColinWright at 11:49:16
Deleted text in red
Inserted text in green
The definition of number in Mathematics has developed throughout the ages.
COLUMN_START | *When* | *What* | *Where* |
| Circa 20000 B.C.
| Whole numbers
Circa 2800 B.C.
800 - 500 B.C.
5th Century B.C.
| Africa - How old is Mathematics? |
| Circa 2800 B.C. | Rational numbers | India |
| 800 - 500 B.C. | Irrational numbers | India |
| 5th Century B.C. | zero | India |
| 100 B.C. | Negative numbers | China |
| 16th Century | Complex numbers | Italy - Niccolo Fontana Tartaglia, Gerolamo Cardano |
| 1761 | Transcendental numbers | Switzerland - Johann Heinrich Lambert |
| 1843 | Quaternions | Ireland - Sir William Rowan Hamilton |
| 1895 | Transfinite numbers | Germany - Georg Cantor |
| 1966 | Hyperreal numbers | U.S.A. - Abraham Robinson |