What is the stamp act

the stamp act of 1765 was enacted by the British Parliament that taxed all legal documents including commercial contracts, newspapers, wills, marriage licenses, diplomas, pamphlets, and playing cards within the American colonies.

Explanation:

in 1897, pershing became a tactical officer at west point, and that's where he was given the nickname "black jack." pershing's first name is "john," for which "jack" is a nickname, and he was a white man who commanded black troops. hence "black jack".