Pennsylvania
Pennsylvania was a region located within the interior of the North American continent of Earth. It was a state in the United States of America; bordering states were Delaware, Maryland, New Jersey, New York, Ohio, and West Virginia. Philadelphia, Pittsburgh, and Harrisburg were cities in this state. The two-letter code for the state was PA. Pennsylvania was one of the original thirteen states of the United States, and was mentioned in Article I of the United States Constitution. (;  okudagram; ; )

The Allegheny River flowed through western Pennsylvania. ()

In 1902, Sean Aloysius O'Brien, leader of the anthracite strike of that year, received the biggest funeral in Pennsylvanian history after having been murdered a week before the strike ended. ()

In 1957, a small Vulcan vessel crash landed near the Pennsylvania town of Carbon Creek. The vessel's occupants proceeded to covertly integrate themselves into the residential population until rescue could arrive. ()

In the 22nd century, Balthazar Edison was born in Murrysville, Pennsylvania. His birthplace was noted in his biographical file. ()

The  was named for Gettysburg, Pennsylvania, where the historic Battle of Gettysburg took place during the American Civil War of Earth's 19th century. (; )

In 1944 of an alternate timeline, in which Nazi Germany, with the help of the time-traveling Na'kuhl, had conquered the northeastern United States, , monitoring an American counteroffensive from orbit, picked up a surge of radio chatter in German and English about heavy bombing in Pennsylvania. ()

Omega IV 
On the planet Omega IV, this was one of the states of a parallel United States. It was mentioned in Article I of their constitution. ()

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Earth subnational entities