The American continent was populated relatively recently: the man only appeared at the end of the Paleolithic. Between 50,000 and 12,000 BC reached the first people to the New World, and soon the whole American continent was populated by people.
From linguistic and archaeological studies indicate that the Mayans already around 2000 BC. one must have been recognizable culture. The ethnogenesis of the Mayas took place most likely in the Sierra de los Cuchumatanes in western Guatemala. Archaeology has shown that the Maya already from that time began to put down his buildings for ceremonial purposes. From this early time is not quite clear where the boundaries lie between the actual Maya and their neighbors, the Olmecs. The two cultures seem to have influenced each other. Eventually, the Olmec culture faded after its influence on the Yucatán Peninsula to have the current Guatemala expanded.
<u>The correct answer is D. Gold was discovered in the Black Hills of South Dakota</u>. The federal government forgot the <em><u>Treaty of Laramie of 1868,</u></em> and on December 3, 1875, <em><u>ordered the Sioux to evacuate the territory and decreed a peremptory period (January 31, 1876</u></em>), after which those who refused to return to the reserves would be considered "hostile" with all the consequences that this term implied. The federal government decided to organize a military expedition to expel the now "hostiles" from the territory that had formally been recognized only eight years ago. In February 1876, preparations began. A long and extensive campaign was foreseen, given the difficulties of the climate and the immensity of the territory that had to be covered. In a first expedition, <em><u>the general George Crook left the first of March of 1876 towards the valleys of the Yellowstone and the Powder River, with the specific mission to destroy the village of the chief Sioux Caballo Loco</u></em>, after the Sioux Tribe declared war on the intruders and on the United States, as a consequence of the permanent invasions of <u>the sacred territory of the Black Hills because of the discovery of the existence of gold in 1871.</u>
The first major domestic crisis of the US government under the Constitution resulted from the federal government exercising its new right to tax the states in order to bring in more revenue to pay down the war debt.
The Industrial Revolution. It added many machines and factories which in turn provided many jobs for many Americans.
