History
Guwahati's history dates back to thousands of years. References in epics, purana's and other traditional histories prove that it is one of Asia's ancient cities. The city of Guwahati was known as Pragjyotishpur in the ancient period, which means the city of eastern astrology. It was a center for research and astrology. Kalika Purana says that present Navagraha Hill was the abode of nine grahas (Planets).   During medieval times between the 12-15th century AD, after the destruction of the Kamata Kingdom, the city lost its earlier glory and became mainly a strategic outpost of the Koch Hajo and Ahom Kingdom of western and eastern Assam. When the western part of the Koch Kingdom fell to the Mughals, the eastern half (Koch Hajo) eventually became a protectorate of Ahom. Although the actual border between both powers (Ahoms and Mughals) fluctuated between the Kartoya River (now in North Bengal) to the Manas and Barnadi rivers, Guwahati remained an important outpost.
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