1773 - Robert Brown, born on the 21st of December in Montrose, Angus, Scotland. A botanist best known for his description of the natural continuous motion of minute particles in solution, which came to be called Brownian movement. He also contributed substantially to knowledge of plant morphology, embryology, and geography, in particular by his original work on the flora of Australia.
1795 - 1800 - He studied medicine at the universities of Aberdeen and Edinburgh and spent five years in the British army serving in Ireland as an ensign and assistant surgeon.
1798 - A visit to London brought him to the notice of Sir Joseph Banks, president of the Royal Society.
1801 - He sailed with the expedition in July.
1810 - Banks appointed him as his librarian.
1820 - Banks bequeathed him a life interest in his extensive botanical collection and library.
1827 - He transferred them to the British Museum, when he became keeper of its newly formed botanical department.
1828 - He published a pamphlet, A Brief Account of Microscopical Observations.
1831 - While dealing with the fertilization of Orchidaceae and Asclepiadaceae, he noted the existence of a structure within the cells of orchids as well as many other plants that he termed the “nucleus” of the cell.
1858 - Died on the 10th of June in London, England.
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