What century did Shulgi reign for 48 years?
Babylonian calendar The Babylonian calendar was a lunisolar calendar with years consisting of 12 lunar months, each beginning when a new crescent moon was first sighted low on the western horizon at sunset, plus an intercalary month inserted as needed by decree. The calendar is based on a Sumerian (Ur III) predecessor preserved in the Umma calendar of Shulgi (c. 21st century BC).
Sur Empire The Sur Empire was an empire established by a Muslim dynasty of Afghan origin who ruled a large territory in northern part of South Asia for nearly 16 years, between 1540 and 1556, with Delhi serving as its capital.