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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.
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 .
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.
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.
E. B. White's Charlotte's Web was a runner-up for the Newbery Medal the year Secret of the Andes won the award. [4] According to a 2008 article by children's literature expert Anita Silvey in the School Library Journal, one member of the Newbery committee stated that she voted for Secret of the Andes rather than Charlotte's Web "because she hadn't seen any good books about South America."
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 used to farm on hilly or mountainous terrain.
The first modern description of the Inca complex occurred in the late 19th century when Ephraim George Squier (1821-1888), the US Commissioner to Peru visited Pisac and left a detailed description of the Inca ruins in his 1877 book Peru - Incidents of Travel and Exploration in the Land of the Incas. [9] In his book Squier offered the following ...
Choquequirao is a 15th- and 16th-century settlement associated with the Inca Empire, or more correctly Tahuantinsuyo. [8] The site had two major growth stages. This could be explained if Pachacuti founded Choquequirao and his son, Tupac Inca Yupanqui, remodeled and extended it after becoming the Sapa Inca. [9]