How many party systems has the united states had since 1789?

a

hey man i never said i was right

but im a great guesser

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".

the answer is aristophanes comedies.