A. The mongol invasion passed through the city of Delhi B. The mongol empire extended from the Pacific Ocean to the Atlantic Ocean

C. Much of present-day Ukraine and Russian was under the rule of the mongols

D. Moscow became a capital city in 1294

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.