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Demonstration that DNA is the genetic material
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Sutton demonstrated chromosomes carry units of Mendelian heredity
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Mendel's experiments rediscovered
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Weismann demonstrated important role of nucleus in heredity
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Miescher isolated DNA
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Publication of Mendel's experiments on heredity
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Darwin published The Origin of Species.
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Wallace wrote on natural selection. Both Darwin's and Wallace's ideas presented to the Linnaean Society of London.
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Darwin wrote an unpublished essay on natural selection.
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Voyage of the Beagle.
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Lyell proposed geological theory of uniformitarianism.
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Publication of Lamarck's theory of evolution — Darwin born.
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Publication of Malthus' Essay on the Principle of Population.
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Hutton proposed geological theory of gradualism.
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Cuvier born. Cuvier founded palaeontology, the study of fossils
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Linnaeus born. Linnaeus founded a hierarchical system of classification.
