Public Timelines

For educational institutions For teachers For students Cabinet

For educational institutions For teachers For students Open cabinet

Create a timeline

Public timelines

About & Feedback Vereinbarung Privatheit FAQ

Cabinet Get premium

Donate

Zhang Heng (78 - 139)aC (18 Aug 139 Jahr v. Chr. – 2 Jul 78 Jahr v. Chr.)

Beschreibung:

aproximó el número π como 730/232 (aproximadamente 3,1465).
Invento el cuadro mágico

Zugefügt zum Band der Zeit:

Historia de las Matemáticas

28 Okt 2018

1

0

1105

Datum:

18 Aug 139 Jahr v. Chr.

2 Jul 78 Jahr v. Chr.

~ 61 years

About & Feedback Vereinbarung Privatheit FAQ

Cabinet Get premium

Donate

The service accepts bank transfer (ACH, Wire) or cards (Visa, MasterCard, etc). Processed by Stripe.

Secured with SSL