Yahoo Web Search

  1. About 6 search results
  1. 14th century AD: French priest Jean Buridan provides a basic explanation of the price system. Philosophy of science [ edit ] 1220s - Robert Grosseteste writes on optics, and the production of lenses, while asserting models should be developed from observations, and predictions of those models verified through observation, in a precursor to the ...

  2. The plague returned at intervals with varying virulence and mortality until the early 19th century. In England, for example, the plague returned in 1360–63, killing 20% of Londoners, and in 1369, killing 10–15%. At the end of the 16th century, the plague hit San Cristóbal de La Laguna (1582–83) in the Canary Islands.

  1. People also search for