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.
Answer: -they left their farms for California
The Dust Bowl was a phenomenon characterized by severe dust storms which was caused by severe drought. It greatly damaged the ecology and agriculture of the people of America and Canada during the 1930s.
The Dust Bowl, also known as the Dirty Thirties, forced thousands of poverty-stricken families to abandon their farms, and migrate to California.
First European to sail around the southernmost tip of Africa. Bartolomeu Dias<span>(Portuguese pronunciation: [baɾtuluˈmew ˈdi.ɐʃ]; Anglicized: </span>Bartholomew Diaz<span>; c. 1450 – 29 May 1500), a nobleman of the Portuguese royal household, was a Portuguese explorer.</span>
