Why did the united states break diplomatic relations with germany in 1917?

What were the advantages and dis- advantages of how britain and france ruled in africa?

The telegraph, the transatlantic telegraph cable, and the telephone were important to businesses after 1850 because of a. they created a system for developing new inventions. b. they filled a need that other inventions of the day could not. c. they attracted investors and created the stock market. d. they made picture-taking a popular american pastime.

Which best describes tactics used by the arab empire when it captured a region