What happened to the price of stocks during most of the 1920

A lot of people invested in the stock market in the 1920s because they could buy stocks 'on the margin', and hence, required little initial capital. ... This easy access to borrowing, fueled a growth in stock market investment, which eventually created a bubble and completely collapsed.

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".

when he becomes king