They were crossing the Charles River to take attach on American troops on top of Bunker Hill
America got involved in the war to contain the spread of communism from the north vietnam to south vietnam. we withdrew from the war because america concluded that they could win. , eventually the effects was the north vietnam took over the south.
I believe the answer to be that it was Karl Marx who wrote that.
c. As slaves, they built roads and rowed ships.
Answer:
A providing free lands to all farmers.
Explanation:
Unless you are talking about the Great Plains Indians, but that has to do with the Dawes Act.