The document summarizes the history of Indian civilization from ancient times to the establishment of empires. It describes the Indus Valley civilization including the cities of Harappa and Mohenjo-Daro. The Aryans later invaded and their Vedic period saw the development of Sanskrit and the Vedas. Major empires included the Mauryan Empire under Ashoka, the Gupta Empire which was a period of cultural flourishing, and the Mughal Empire which ruled in the 16th century. Key contributions of Indian civilization included urban planning, major religions, mathematics, and architectural achievements.