enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Inca agriculture - Wikipedia

    en.wikipedia.org/wiki/Inca_agriculture

    Inca agriculture was the culmination of thousands of years of farming and herding in the high-elevation Andes mountains of South America, the coastal deserts, and the rainforests of the Amazon basin. These three radically different environments were all part of the Inca Empire (1438-1533 CE) and required different technologies for agriculture .

  3. Andén - Wikipedia

    en.wikipedia.org/wiki/Andén

    A water channel to drain and irrigate andenes. Andenes were complicated to build, requiring provisions for drainage and irrigation. The first step in constructing an andén was to lay an underground or bedrock foundation about 1 metre (3.3 ft) deep to lend strength and stability to the retaining wall, which might rise about 2 metres (6.6 ft) above the slope of the ground.

  4. Agricultural history of Peru - Wikipedia

    en.wikipedia.org/wiki/Agricultural_history_of_Peru

    In the 19th century the Inca fertilizer guano became the most important resource in Peru's modern history, for its use as a fertilizer and as gunpowder. [10] The stock of guano built up because the Humboldt current once drew thousands of anchovies and other fish, which in turn, attracted thousands of birds.

  5. History of South America - Wikipedia

    en.wikipedia.org/wiki/History_of_South_America

    Terrace farming was a useful form of agriculture. There is evidence of excellent metalwork and successful skull surgery in Inca civilization. The Inca had no written language, but used quipu, a system of knotted strings, to record information. [46] Ongoing Kiphu research suggests that the Inca used a phonetic system as a form of writing in the ...

  6. Terrace (earthworks) - Wikipedia

    en.wikipedia.org/wiki/Terrace_(earthworks)

    Rice terrace in the Fukuoka Prefecture, Japan. In agriculture, a terrace is a piece of sloped plane that has been cut into a series of successively receding flat surfaces or platforms, which resemble steps, for the purposes of more effective farming. This type of landscaping is therefore called terracing. Graduated terrace steps are commonly ...

  7. Inca technology - Wikipedia

    en.wikipedia.org/wiki/Inca_technology

    The Inca faced many problems with living in areas with steep terrain. Two large issues were soil erosion and area to grow crops. [5] [6] The solution to these problems was the development of terraces, called Andenes. These terraces allowed the Inca to utilize the land for farming that they never could in the past. [6]

  8. HuffPost Data

    projects.huffingtonpost.com

    Poison Profits. A HuffPost / WNYC investigation into lead contamination in New York City

  9. Pre-Columbian era - Wikipedia

    en.wikipedia.org/wiki/Pre-Columbian_era

    Inca rule extended to nearly a hundred linguistic or ethnic communities, some 9 to 14 million people connected by a 40,000-kilometer road system. Cities were built with precise stonework, constructed over many levels of mountain terrain. Terrace farming was a useful form of agriculture.