Thomas edison is considered one of the greatest investors because he was responsible for

Explanation:

Thomas Edison was an American Inventor. He was very famous for his many inventions. He was born in the mid 18th century and died in 1931. He invented many devices. His invented devices belonged to the fields of electric power generation, sound recording, mass communication, motion pictures, etc. He was a businessman as well. His first invention was Phonograph, which is an early form of gramophone. But the real reason behind his fame was his invention of the incandescent light bulbs. He worked hard on this invention and let other people work on his invention of phonograph.

a) romans valued loyalty and discipline

d.he wanted to send diplomats to communist countries.