Freed slaves or the enslaved negroes/black farmers migrated to western territories because the west was new and the United States Agrarian Reform had promised them a free land which is forty (40) acres and a mule under the Homestead Act of 1862.
The Inca culture was one of the most developed in pre-Columbian America. Among their achievements, was their architectural ability. Inca structures were made of stone that fit together, with extraordinary stability. The buildings have survived for centuries, with no use of mortar, in areas that are prone to earthquakes and volcanic activity.
The Inca also developed calendars based on astronomical observations. Astronomers understood equinoxes, solstices and zenith passages. Numerical information, particularly for administration, was stored in <em>quipu</em> strings.
In terms of art, Inca ceramics were highly advanced, although most of their silver and gold work was melted down by the Spaniards.
They were also advanced in medicine, performing skull surgeries successfully and with high survival rates.
Maybe C. But what do you think?
Marius's election as a consul made the most sweeping changes to the Roman army. They were known as the Marian Reforms. Shortly after his election, he increased the numbers of the active army as he was concerned about a Barbarian invasion. Marius relaxed the strict recruitment policies. Until then, a Roman soldier had to provide his own uniform and weapons, own land and be of a certain social class and a Roman citizen. Marius allowed all Roman citizens to join the army irrespective of what social class they were. They also did not have to own land.