Lagadha (Lagadha)

The author of the treatise "Dzhetisha-Vedanga" ( "Jyotisavedanga"), written between 450 and 350 gg. BC. This work is a guide to determine the time for execution of the Vedic sacrificial. "Dzhetisha-Vedanga" preserved in the revised and corrected, which used rigvediyya-Brahmins. This is the first work on mathematical astronomy in India, and it is almost entirely based on the Mesopotamian astronomiko-astrological sources VII - VI century. BC. Most likely, L. managed to get acquainted with the Mesopotamian ideas, when they are nestled in Northern India in the occupation of the Punjab Achaemenides. Effect of L calendar. on orthodox Brahmans lasted more than two millennia. One of the major innovations made by LG, was the use of tithi (1 / 30 synodic months) as the standard unit of time. L. also introduced a water clock and the gnomon.

Literature:
1. Sphujidhvaja. The Yavanajataka. / Edited, translated and commented by David Pingree.
2. Pingree D. Sanskrit Astronomical Tables in the United States.
3. Pingree D. Astronomy and Astrology in India and Iran. / / Isis. - Vol. 54, Part 2. - N 176. - June 1963.