What did the Phoenicians develop to simplify their trading practices (think writing)?

Which statement describes employment in the late 1800s

Which of the following was not an effect of westward expansion? a. native american tribes suffered confinement on reservations. b. native americans learned new techniques of irrigation. c. many native americans died from the spread of disease. d. natural resources were depleted from misuse by white settlers.

Why were inventors essential or necessary for an industrial revolution to happen in america