What caused the stock market crash of october 1929

In short, excessive speculation.

During the 1920s, the United States economy saw a period of massive growth and everybody wanted in. So, many people overleveraged themselves and got into financial speculation. People did well for a while but the music eventually stopped as the market hit limits and the house of cards came tumbling down as many people didn't have the money to back their bets.

the most famous of all the units fighting in cuba, the "rough riders" was the name given to the first u.s. volunteer cavalry under the leadership of theodore roosevelt. roosevelt resigned his position as assistant secretary of the navy in may 1898 to join the volunteer cavalry. the original plan for this unit called for filling it with men from the indian territory, new mexico, arizona, and oklahoma. however, once roosevelt joined the group, it quickly became the place for a mix of troops ranging from ivy league athletes to glee-club singers to texas rangers and indians.