The earliest Satavahana inscriptions belong to the 1st century BCE. In the 1st century BCE the Satavahana defeated the Kanvas and established their rule over parts of central India.
According to B. B. Lal, former DG of ASI, Kalibangan site shows that an earthquake occured around 2600 BC, which brought to an end the Early Indus settlement at the site. It is perhaps the earliest archaeologically recorded earthquake.
The Ninth Rock Edict criticizes the use of various popular ceremonies like during the marriage of son or daughter, birth of a child, etc. On the contrary it lays stress on Dhamma and tells the usefulness of moral conduct in one’s life.
EXAMIANS