What is the upper quartile age of the US Presidents at the time of their inauguration?

Who is john brown and what did he do

Rivalries between european imperialist powers and the growth of european militaries contributed to which outcome in the early 20th century? o a. many european powers were eager to go to war with one another. o b. european states became less concerned about controlling overseas empires. o c. small countries became more willing to join powerful empires. o d. the alliance system that maintained a balance of power in europe broke down.

How did geography impact the development of the early russia?