René Descartes died on February 11, 1650, in Stockholm, Sweden, succumbing to pneumonia at the age of 53. He was in Stockholm at the time to help the queen of Sweden set up an academy of science. Queen Christina, only 22 years old, made Descartes rise before 5:00 AM for her daily lesson—something which proved detrimental to his health, as he was used to sleeping late since childhood to accommodate his sickly nature. One morning, likely as a result of this early rising, combined with the freezing Swedish winters, Descartes caught a chill that proved to be fatal.
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