The geographers of ancient India put forward theories regarding the origin of the earth. They theorized that the earth was formed by the solidification of gaseous matter and that the earth's crust is composed of hard rocks (sila), clay (bhumih) and sand (asma).[17] Theories were also propounded to explain earthquakes (bhukamp) and it was assumed that earth, air and water combined to cause earthquakes.[17] The Arthashastra, a compendium by Kautilya (also known as Chanakya) contains a range of geographical and statistical information about the various regions of India.[15] The composers of the Puranas divided the known world into seven continents of dwipas, Jambu Dwipa, Krauncha Dwipa, Kusha Dwipa, Plaksha Dwipa, Pushkara Dwipa, Shaka Dwipa and Shalmali Dwipa. Descriptions were provided for the climate and geography of each of the dwipas.[17] |
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