What was the first elective governing body in a
British colony?

House of Burgesses

Explanation:

House of Burgesses, representative assembly in colonial Virginia, which was an outgrowth of the first elective governing body in a British overseas possession, the General Assembly of Virginia. The General Assembly was established by Gov. George Yeardley at Jamestown on July 30, 1619. It included the governor himself and a council—all appointed by the colonial proprietor (the Virginia Company)—along with two elected burgesses (delegates) from each of the colony’s 11 settlements. The assembly met in Jamestown until 1700, when meetings were moved to Williamsburg, the newly established capital of colonial Virginia.

they both built pyramids.

i see, would you mind putting it as one?