Editing 1593 (section)

=== January–March ===
* [[January 25]] &ndash; Siamese King [[Naresuan]], in combat on elephant back, kills Burmese Crown Prince [[Mingyi Swa]] on Monday, Moon 2 Waning day 2, Year of the Dragon, [[Chulasakarat]] 954, reckoned as corresponding to [[January 25]], 1593, of the Gregorian calendar, and commemorated as [[Public holidays in Thailand#Other national observances|Royal Thai Armed Forces Day]].<ref>{{cite web |url=https://www.smithsonianmag.com/smart-news/thailand-drops-charges-against-historian-facts-duel-180967881/#:~:text=In%201593%2C%20after%20a%20bitter,liberation%20story%20to%20the%20country |title=Thailand Drops Charges Against Historian Who Questioned the Facts Around Historic 16th-Century Duel |last=Katz |first=Brigit |date=2018 |website=Smithsonian Magazine |access-date=March 13, 2023}}</ref>
* [[January 27]] &ndash; The [[Roman Inquisition]] opens the seven-year trial of scholar [[Giordano Bruno]].
* [[February 2]] &ndash; [[Battle of Piatka|Battle of Piątek]]: Polish forces led by [[Janusz Ostrogski]] are victorious.<ref>{{cite book|author=Paweł Jasienica|title=The Commonwealth of Both Nations: The Silver Age|url=https://books.google.com/books?id=T7YmAQAAMAAJ|year=1987|publisher=American Institute of Polish Culture|isbn=978-0-87052-394-6|page=156|language=en}}</ref>
* [[February 8]] &ndash; [[Siege of Pyongyang (1593)]]: A Japanese invasion is defeated in Pyongyang by a combined force of Korean and Ming troops.<ref>Kenneth M.  Swope, ''A Dragon's Head and a Serpent's Tail: Ming China and the First Great East Asian War, 1592–1598'' (University of Oklahoma Press, 2009) p.156</ref>
* [[February 12]] &ndash; [[Battle of Haengju]]: [[Joseon|Korea]] defeats [[Japan]].<ref>{{cite book|author1=Kenneth B. Lee|author2=Kong-bok Yi|title=Korea and East Asia: The Story of a Phoenix|url=https://books.google.com/books?id=XrZQs-6KswMC&pg=PA102|year=1997|publisher=Greenwood Publishing Group|isbn=978-0-275-95823-7|pages=102|language=en}}</ref>
* [[March 7]] (February 25 [[Old Style]]) &ndash; The [[Uppsala Synod]] discontinues; the [[Liturgical Struggle]] between the [[Swedish Reformation]] and Counter-Reformation ends in Sweden.
* [[March 14]] &ndash; The [[Pi Day]], giving the most digits of [[pi]] when written in ''mm/dd/yyyy'' format, (i.e. 3.141593, 3/14/1593) occurs, as realized later. During 1593 Flemish mathematician [[Adriaan van Roomen]] is working on the most accurate calculation of pi up to that time and arrives at 16 decimal places of pi using the [[Pi#Polygon approximation era|polygon approximation method]]), and publishes it in his treatise ''Ideae mathematicae pars prima'' (Antverpiae, 1593).<ref>"[https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7927718/?page=7|Medicine and Mathematics in the Sixteenth Century]", by David Eugene Smith, in ''Annals of Medical History'' (July 1917) p.131</ref>