Editing June 21 (section)

===1601–1900===
*[[1621]] &ndash; [[Old Town Square execution|Execution of 27 Czech noblemen]] on the Old Town Square in Prague as a consequence of the [[Battle of White Mountain]].
*[[1734]] &ndash; In [[Montreal]], [[New France]], a  slave known by the French name of [[Marie-Joseph Angélique]] is put to death, having been convicted of setting the fire that destroyed much of the city.
*[[1749]] &ndash; [[Halifax, Nova Scotia]], is founded.<ref>{{cite web |title=Nova Scotia {{!}} The Canadian Encyclopedia |url=https://www.thecanadianencyclopedia.ca/en/timeline/nova-scotia |website=www.thecanadianencyclopedia.ca |access-date=27 October 2021}}</ref>
*[[1768]] &ndash; [[James Otis Jr.]] offends the King and Parliament in a speech to the Massachusetts General Court.
*[[1788]] &ndash; [[New Hampshire]] becomes the ninth state to ratify the [[Constitution of the United States]].<ref>{{cite book|author1=Merrill Jensen|author2=Robert A. Becker|title=The Documentary History of the First Federal Elections, 1788-1790|url=https://books.google.com/books?id=sxS00wE2l5kC&pg=PA23|date=15 June 1976|publisher=Univ of Wisconsin Press|isbn=978-0-299-06690-1|pages=23}}</ref>
*[[1791]] &ndash; King [[Louis XVI of France]] and his immediate family begin the [[Flight to Varennes]] during the French Revolution.
*[[1798]] &ndash; [[Irish Rebellion of 1798]]: The British Army defeats Irish rebels at the [[Battle of Vinegar Hill]].
*[[1813]] &ndash; [[Peninsular War]]: Wellington defeats Joseph Bonaparte at the [[Battle of Vitoria]].
*[[1824]] &ndash; [[Greek War of Independence]]: Egyptian forces capture [[Psara]] in the Aegean Sea.
*[[1826]] &ndash; [[Maniots]] defeat Egyptians under Ibrahim Pasha in the [[Battle of Vergas]].
*[[1848]] &ndash; In the [[Wallachian Revolution of 1848|Wallachian Revolution]], [[Ion Heliade Rădulescu]] and [[Christian Tell]] issue the [[Proclamation of Islaz]] and create a new republican government.
*[[1864]] &ndash; [[American Civil War]]: The [[Battle of Jerusalem Plank Road]] begins.
*[[1898]] &ndash; The United States [[Capture of Guam|captures Guam]] from Spain. The few warning shots fired by the U.S. naval vessels are misinterpreted as salutes by the Spanish garrison, which was unaware that the two nations were at war.<ref>{{cite book|last=Barnes|first=Mark|title=The Spanish–American War and Philippine Insurrection, 1898–1902: An Annotated Bibliography|location=Florence, Ky.|publisher=Taylor & Francis|date=2010|isbn=9780415999571|page=xv|postscript=none}}; {{cite book|last=Schoonover|first=Thomas David|title=Uncle Sam's War of 1898 and the Origins of Globalization|location=Lexington, Ky.|publisher=University Press of Kentucky|date=2003|isbn=9780813122823|url=https://books.google.com/books?id=JpsRZqopiN4C|page=89}}</ref>
*[[1900]] &ndash; [[Boxer Rebellion]]: China formally declares war on the United States, Britain, Germany, France and Japan, as an edict issued from the [[Empress Dowager Cixi]].