What were the three prominent events of 1619 that changed jamestown?

The three events in 1619 that changed Jamestown were:

1. George Yeardley became the governor of Virginia. He had the duties of establishing a new plan of settlement and land reform, building a college, and to create a legislative assembly. This happened in April 1619. 

2. The first representative assembly of the colony of Virginia came together in a church in Jamestown for five day (from July 30 - August 4, 1619). They passed some new laws.

3. August 1619: The first documented Africans came to Virginia. 

Marked Correct

Explanation:

In 1619, the first representative government came to America. The first slaves were imported from Africa, and the London Company sent women to the colony of Jamestown to marry the male settlers already there and establish families in the New World.