# Decimal Number

A number written to the base 10.

### Historical Notes

**~5000BC***A decimal number system is in use in Egypt.***1360BC***A decimal number system with no zero starts to be used in China.***594AD***Decimal notation is used for numbers in India. This is the system on which our current notation is based.***976***Codex Vigilanus copied in Spain. Contains the first evidence of decimal numbers in Europe.*

**See also: **Decimal, Decimal Point, Digit, Repeating Decimal.

**Subjects: ** Mathematics