Who was the most famous of Alexandria's inventors who made levers and pulleys

How did inovations in manufacturing lead to improvments in transportation?

Florida benefited greatly from roosevelt’s civilian conservation corps (ccc) in the 1930s. which of these was of least benefit to the state? a) workers planted millions of trees. b) workers received food and clothing. c) the government created state parks. d) new roads facilitated travel out west.

Who were the only people that were not allowed to be a citizen in the roman empire