These events happened from earliest to latest in the following order:
- First, the great bath was constructed in the city of Mohenjo-daro aroud the third millenium before Christ
- Second, the Rigveda was composed: evidence suggests that it dates from 1500-1200 BC.
- Third, The Upanishads were composed: while there is not a consensur regarding when these texts were created, it is believed that it may have occured during the period from VII Century BC to III Century BC.
- Finally, The Bhagavad Gita was written: authors believe the Bhagavad Gita to have been written between the V century BCE to the II century BCE.