770s

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Centuries: 7th century - 8th century - 9th century

Decades: 720s - 730s - 740s - 750s - 760s - 770s - 780s - 790s - 800s - 810s - 820s

Years: 770 771 772 773 774 775 776 777 778 779

Events: The famous King Khalif Abbasid Al Mansoor (712-775) founded Baghdad, which is situated on the banks of the Tigris, and made it a center of learning. The King invited a scholar of Ujjain by the name of Kanka in 770 A.D. Kanka used the Brahma Sphuta Siddhanta to explain the Hindu system of arithmetic astronomy.

Source

[1]History of Indian Mathematics, retrieved 16:40 26th August 2005