The Pennsylvania Assembly was a representative body elected by the freemen of the colony. It had the power to make laws, levy taxes, and impeach the governor. The Assembly was a major check on the power of the governor and helped to ensure that the colony remained a self-governing entity.
Here are some specific examples of the Pennsylvania Assembly's self-governing powers:
* In 1683, the Assembly passed a law that established a system of public education in the colony.
* In 1701, the Assembly passed a law that guaranteed religious freedom to all residents of the colony.
* In 1718, the Assembly passed a law that limited the governor's power to veto legislation.
The Pennsylvania Assembly was a key institution in the self-government of the colony. It helped to ensure that the colony remained a free and democratic society.