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  1. Columbian exchange - Wikipedia

    en.wikipedia.org/wiki/Columbian_exchange

    14 hours ago · The Columbian exchange, also known as the Columbian interchange, named after Christopher Columbus, was the widespread transfer of plants, animals, culture, human populations, technology, diseases, and ideas between the Americas, West Africa, and the Old World in the 15th and 16th centuries.

  2. List of Ig Nobel Prize winners - Wikipedia

    en.wikipedia.org/wiki/List_of_Ig_Nobel_Prize_winners

    1 day ago · This is a list of Ig Nobel Prize winners from 1991 to the present day.. A parody of the Nobel Prizes, the Ig Nobel Prizes are awarded each year in mid-September, around the time the recipients of the genuine Nobel Prizes are announced, for ten achievements that "first make people laugh, and then make them think".