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It is named after John Langdon Down, the British doctor who fully described the syndrome in 1866. Some aspects of the condition were described earlier by Jean-Ãtienne Dominique Esquirol in 1838 and Ãdouard SÃ©guin in 1844. In 1957, the genetic cause of Down syndrome, an extra copy of chromosome 21, was discovered.
Trump wasnât to know that the first scientist to write about the âgreenhouse effectâ was French physicist Joseph Fourier in 1824; followed by Irish physicist John Tyndall in 1861. China has been credited with many inventions â notably paper, gunpowder, printing and the compass â but climate change isnât one of them.