The first human cases of COVID-19 were identified in Wuhan, China, in December 2019. Pandemic chronology Background. Phylogenetic analyses estimate that SARS-CoV-2 first arose in October or November 2019, evolving from a coronavirus that infects wild bats and spreading to humans through an intermediary wildlife ...

The Decembrist Revolt (Russian: Восстание декабристов, romanized: Vosstaniye dekabristov, lit. 'Uprising of the Decembrists') took place in Russia on 26 December [O.S. 14 December] 1825, during the interregnum following the sudden death of Emperor Alexander I. Alexander's heir apparent, Constantine, had privately declined the succession, unknown to the court, and his ...