A brief Chinese number history

1.Ancient Chinese count by knotting

2.Numerals on oracle (Inscriptions on bones or tortoise ) of Shang Danasty B.C. 14 centuries

3.Numerals on oracle (Inscriptions on bones or tortoise ) of Shang Dynasty in B.C. 14 centuries is same as that we currently use

4. Ancient Chinese counting rod numerals used for 2 thousand years.

5. Ancient mathematician Zhu congzi (祖沖之) (429-500) and his son used counting rod.

6.The counting rod of Han dynasty  unearthed from san xi B. C. 1 century

7.The one-to-one relationship between Ancient counting rod numerals and modern Arabic- numerals

8.Computation classic book by Sun zi (Sun zi Suanjing ) A.D. 5 centuries

9.Chinese abacus

10.Ancient mathematician Jia xian (賈憲，on 11th century) of song dynasty used ten-thousands, thousands, hundreds, tens, ones (bu),to express place value by counting rod

11.Abacus in computation classic book by Ceng dawei of Ming Dynasty《算法統宗》（in 1592）in 15th century

12. Counting rod and numerals  and abacus numberals