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This is a list of selected October 27 anniversaries that appear in the "On this day" section of the Main Page. To suggest a new item, in most cases, you can be bold and edit this page. Please read the selected anniversaries guidelines before making your edit. However, if your addition might be controversial or on a day that is or will soon be on the Main Page, please post your suggestion on the talk page instead.

Please note that the events listed on the Main Page are chosen based more on relative article quality and to maintain a mix of topics, not based solely on how important or significant their subjects are. Only four to five events are posted at a time and thus not everything that is "most important and significant" can be listed. In addition, an event is generally not posted this year if it is also the subject of the scheduled featured article or picture of the day.

To report an error when this appears on the Main Page, see Main Page errors. Please remember that this list defers to the supporting articles, so it is best to achieve consensus and make any necessary changes there first.

October 26 October 28
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Blurb Reason
and Turkmenistan (1991) refimprove section
1275 – The earliest recorded usage of the name "Amsterdam" was made on a certificate by Count Floris V of Holland that granted the inhabitants, who had built a bridge with a dam across the Amstel, an exemption from paying the bridge's tolls. refimprove section
1553 – Condemned as a heretic for preaching nontrinitarianism and anti-infant baptism, Michael Servetus was burned at the stake outside Geneva. refimprove section
1644English Civil War: the combined armies of Parliament inflicted a tactical defeat on the Royalists in the Second Battle of Newbury, but failed to gain any strategic advantage. refimprove section
1795 – The United States and Spain signed the Treaty of San Lorenzo, defining the boundaries of the United States with the Spanish colonies and guaranteeing the United States navigation rights on the Mississippi River. refimprove
1810 – The United States annexed West Florida, the western portion of the Spanish colony of Florida. unreferenced section
1907 – Hungarian gendarmes fired into a crowd of people gathering for the consecration of the local church in Csernova (now Ružomberok, Slovakia), killing fifteen people. neutrality disputed
1916 – Supporters of deposed Ethiopian Emperor-designate Lij Iyasu were defeated at the Battle of Segale, ending their attempt to restore him to the throne. section needs footnotes
1961NASA launched the first Saturn I rocket, the United States' first dedicated spacecraft designed specifically to launch loads into Earth orbit. refimprove
1967 – American Catholic priest Philip Berrigan led a protest against the Vietnam War by pouring blood over Selective Service records in Baltimore, Maryland. lead too short
1971 – The Democratic Republic of the Congo was renamed Zaire after a Portuguese mispronunciation of the Kikongo word nzere or nzadi, which translates to "the river that swallows all rivers" . DRC: refimprove section; Zaire: needs more footnotes
1981Cold War: Soviet Whiskey-class submarine U137} ran aground near Sweden's Karlskrona naval base (monument pictured), sparking an international incident termed "Whiskey on the rocks". lots of CN tags
2005 – The deaths of two Muslim youths in the Clichy-sous-Bois suburb of Paris triggered four months of rioting by mostly youths of North African origins in various parts of France. refimprove section

Eligible

Notes

October 27: Independence Day in Saint Vincent and the Grenadines (1979)

City Hall station in the 1900s
City Hall station in the 1900s

Lope de Aguirre (d. 1561) · Nancy Storace (b. 1765) · Pumpsie Green (b. 1933)

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