Pennsylvania State Nickname
The Keystone State
Pennsylvania is nicknamed the "Keystone State," a designation that highlights its central and pivotal role in the formation of the United States. This moniker was officially adopted on March 9, 1800, emphasizing the state's key position in the arch of the original 13 colonies. The term "keystone" refers to the central wedge-shaped stone in an arch that holds the other stones in place, symbolizing Pennsylvania's essential role in maintaining the unity of the newly formed nation. As one of the original 13 colonies and the location of the Continental Congress, Pennsylvania played a crucial part in the early development and foundation of the United States.
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