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'''Count Pierre-Louis-George du Buat''' (23 April 1734 – 17 October 1809) was a French military engineer who worked on problems in hydraulics and hy [[Category:1809 deaths]] ...

...ited many places in England, he lived in London for a few months where, in 1809, he published his first work.<ref name=":0" /> In 1814, he published his se ...ir Applications to the Integral Calculus and the Summation of Series |date=1809 |publisher=John Murray and Archibald Constable and Company }}</ref> Through ...

! style="width:5%;"|Deaths ...bagh area and measured 6.3 on the Richter scale, stronger than that of the 1809 [[Cape Town]] earthquake which destroyed a local [[Milnerton]] farm.<ref>{{ ...

| serviceyears = 1809–1855 Marshall became a warrant officer on July 15, 1809. His specialization was gunnery. He continued at the Navy Yard from 1807 ...