Question

what are three reason that Pennsylvania was nicknamed the Keystone State?

Answer 1

The main reason is that it was crucial in holding the union together when the United States were originally formed. A Keystone is essentially a cornerstone or piece that a building is built off of.

Answer 2

I’m unsure on the other two reasons though unfortunately. They might be something that you learned in your curriculum.

Answer 3

Thank you Isry