Fifty years ago, a year after U.S. ground troops arrived in South Vietnam to help that country fight off the communist North Vietnamese, Gallup interviewers explained to Americans in a nationwide poll that "hawks" were people who wanted to step up the fighting in Vietnam, and "doves" were people who wanted to slow it down. Given these definitions, 47% of Americans described themselves as hawks and 26% as doves, while 27% couldn't say.
This is known as the Homestead Act .
During 1862, individuals were offered 160 acres of free land that they can use to start their own farm. This program created by the federal government gave away roughly 270 million acres of land. Most of this land was west of the Mississippi River. This act helped in changing the population of the Midwest United States.
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It might be said that the French explorers learnt how to make boats suitable for the coastal waters, rivers and lakes when they were at the great Lakes. They decided to build small sailing- ships to travel the entire length of the Missouri and the Mississippi River to New Orleans on the golf of Mexico. They built <span>native birch-bark canoes and large rafts.</span>
Limited Government: We have a bill of rights
Separation of Powers: Supreme court, President, and Congress
Checks and Balances: The president can veto stuff from congress and congress can override the veto with 2/3 vote. Supreme court can declare things unconstitutional.
Judicial Review: Supreme court can declare things unconstitutional.
Federalism: the theory or advocacy of federal principles for dividing powers between member units and common institutions.
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The area is 320 for the first answer.