6th March 1869: Dmitri Mendeleev presents the first periodic table 29th February 2016 https://www.historypod.net/wp-content/uploads/2016/02/03-06-Dmitri-Mendeleev-presents-the-first-periodic-table.mp3 “6th March 1869: Dmitri Mendeleev presents the first periodic table” from HistoryPod.net by HistoryPod.net.
23rd February 1836: The Siege of the Alamo begins, lasting for thirteen days before the final battle 23rd February 2021
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