Capture of Damascus
Oct 1 World War I: Combined Arab and British force under the Lawrence of Arabia, T. E. Lawrence captures Damascus from the Turks
- Oct 3 Boris becomes king of Bulgaria
- Oct 3 Brothers Edgar and Archibald Selwyn open Selwyn Theater at 229 W 42nd St, Times Square, NYC: now known as American Airlines Theatre
- Oct 6 US ship Otranto sinks between Scotland & Ireland, 425 die
Sgt. Alvin York Kills 25 German Soldiers
Oct 8 American soldier Alvin York single-handedly attacks German gun nest, killing at least 25 and capturing 132 Germans
- Oct 10 Baden's Geisz forms government
- Oct 11 Major tsumani shakes Caribbean
- Oct 12 Cloquet fire kills 453 and injures or displaces 52,000 people
- Oct 15 British Q-ship Cymric sinks British submarine J6
- Oct 17 De Kooy airport in Netherlands opens
- Oct 17 Yugoslavia proclaims itself a republic
- Oct 18 Czechoslovakia declares independence from Austro-Hungarian Empire
- Oct 18 NHL's Quebec Bulldogs sold to a Toronto businessman P. J. Quinn
- Oct 18 Russian 10th Army drives out White armies of Tsaritsyn (Stalingrad)
End of World War I
Oct 20 In order to secure a WWI armistice, Germany agrees to further concessions
Gift of Stonehenge
Oct 26 Cecil Chubb gives prehistoric monument Stonehenge to the British nation
- Oct 26 Germany's supreme commander General Eric Ludendorff resigns, protesting the terms to which the German Government has agreed in negotiating an armistice
- Oct 26 Soldiers revolt at Harskamp, Veluwe
- Oct 28 Czechoslovakia gains independence as Austria-Hungary breaks up
Republic of Czechoslovakia
Oct 28 Republic of Czechoslovakia created with Tomáš Masaryk as its 1st president
- Oct 28 Tomáš Massaryk claims independence for Czechoslovakia
- Oct 29 German sailors refuse to obey orders to fight British naval forces and lead a revolt in the naval ports of Wilhelmshaven, beginning the German Revolution
- Oct 30 Slovakia asks for creation of Czechoslovakian state
- Oct 30 WWI: Turkey signs an armistice with the Allies, agreeing to end hostilities at noon on 31 October
- Oct 31 Short-lived Banat Republic founded in territory where Romania, Hungary and Serbia meet
The 1918 Flu Pandemic
Oct 31 Spanish flu kills 21,000 people in the US in a single week