CENSUS BUREAU census.gov Household Income: 2012 INTRODUCTION This report presents data on median household income at the national and state levels based on the 2011 and 2012 American Community Survey (ACS).
Inca Civilization. Definition. The Inca civilization flourished in ancient Peru between c. 1400 and 1533 CE, and their empire eventually extended across western South America from Quito in the north to Santiago in the south, making it the largest empire ever seen in the Americas and the largest in the world at that time.
For students of economics and ancient civilizations alike, the strange economy of the Incan Empire is fascinating. Annalee Newitz writes for io9: In the fifteenth and sixteenth centuries, the Inca Empire was the largest South America had ever known. Rich in foodstuffs, textiles, gold, and coca, the Inca were masters of city building but nevertheless had no money. In fact, they had no marketplaces at all.