# Chinese Remainder Theorem/Historical Note

Jump to navigation
Jump to search

## Historical Note on Chinese Remainder Theorem

The Chinese Remainder Theorem was found in the *Sun Tzu Suan Ching* of Sun Tzu, who was active in China sometime between $200$ and $500$ C.E (nobody knows exactly when).

The principle is believed to have been used by Chinese calendar makers as far back as $100$ C.E.

It was first proved properly by Qin Jiushao in $1247$.

## Sources

- 1982: P.M. Cohn:
*Algebra Volume 1*(2nd ed.) ... (previous) ... (next): $\S 2.3$: Congruences - 1998: David Nelson:
*The Penguin Dictionary of Mathematics*(2nd ed.) ... (previous) ... (next):**Chinese remainder theorem** - 2008: David Nelson:
*The Penguin Dictionary of Mathematics*(4th ed.) ... (previous) ... (next):**Chinese remainder theorem**