How did the romans bring fresh water to their cities?
a. they diverted water from the tiber.
b. they built a system of aqueducts.
c. they imported water from other countries.
d. they built dams across the tiber.

Which of following most accurately describes china today?

The purpose of the comintern was a. to spy on anti-communist activity. b. to spread communism in other countries. c. to administer communist rule. d. to develop future communist leaders.

1. america's first national road morse 2. joined lake erie with the hudson river cooper 3. steam-driven locomotive erie canal 4. allowed businesspeople to keep in touch with trends cumberland 5. telegraph code fulton 6. clermont telegraph