True or false: russia's invasion of austria in defense of serbia was the justification for germany declaring war on russia in 1914.

What was eleanor roosevelt's most significant achievement?

What did jews use for money when jesus was around?

How did the northern u.s. change during the 19th century? select the best choice from the answers provided. a. it became more industrial. b. it became more agrarian. c. it became less populated. d. it became less diverse