1) William Penn founded the colony of Pennsylvania in 1681.

2) William Penn was a prominent Quaker leader and advocate for religious freedom.

3) William Penn negotiated the Treaty of Shackamaxon with the Native Americans.

4) William Penn's vision for Pennsylvania included principles of equality and peace.

5) William Penn was known for establishing Philadelphia as a city of brotherly love.

6) William Penn designed the layout of Philadelphia with streets and parks in a grid pattern.

7) William Penn's ideas on governance influenced the development of American democracy.

8) William Penn faced challenges from other colonies and the British Crown during his tenure as proprietor of Pennsylvania.

9) The principles of religious tolerance and fair treatment of Native Americans guided William Penn's policies in Pennsylvania.

10) William Penn's legacy as a progressive thinker and founder of Pennsylvania is celebrated to this day.