Editing 1610 (section)

=== January&ndash;March ===
* [[January 6]] &ndash; [[Nossa Senhora da Graça incident|''Nossa Senhora da Graça'' incident]]: A Portuguese [[carrack]] sinks near Nagasaki, after fighting Japanese samurai for four nights.
* [[January 7]] &ndash; [[Galileo Galilei]] first observes the four [[Galilean moons]] of [[Jupiter]]: [[Ganymede (moon)|Ganymede]], [[Callisto (moon)|Callisto]], [[Europa (moon)|Europa]] and [[Io (moon)|Io]], but is unable to distinguish the latter two until the following day.
* [[February 24]] &ndash; English courtier [[Thomas Roe]] sets out on an expedition to [[The Guianas]] and [[Amazon River]].
* [[March 13]] &ndash; [[Galileo Galilei]]'s treatise on astronomy, ''[[Sidereus Nuncius]]'', the first printed scientific record of observations through a telescope, is first published. <ref>[https://www.newyorker.com/magazine/2013/12/16/a-very-rare-book "A Very Rare Book"], by Nicholas Schmidle, ''The New Yorker'', December 8, 2013</ref>
* [[March 22]] (March 12 O.S.) &ndash; [[Mikhail Skopin-Shuisky]], nephew of the Tsar Vasili, liberates Moscow from rebels. <ref>N. G. Petrova, ''Skopin-Shuisky'' (Young Guard Press, 2010) (in Russian) p. 189</ref><ref>Chester Dunning, ''A Short History of Russia's First Civil War: The Time of Troubles and the Founding of the Romanov Dynasty'' (Pennsylvania State University Press, 2004) pp. 272–273</ref>