- Oct 1 Dutch soccer club HFC Haarlem is founded; National champions 1946; bankrupt in 2010; merge with HFC Kennemerland, new club Haarlem Kennemerland
- Oct 1 Washington voters adopt state constitution in referendum
- Oct 2 1st Pan American conference (Washington, D.C.)
- Oct 2 In Colorado, Nicholas Creede strikes it rich in silver during the last great silver boom of the American Old West.
- Oct 6 famed cabaret Moulin Rouge opens (as the Jardin de Paris) at the foot of the Montmartre hills in Paris, France
- Oct 6 First known ascent of the summit of Mt Kilimanjaro, Africa's highest peak, by German climber Hans Meyer and Austrian Ludwig Purtscheller
- Oct 10 Barnard College is founded in New York City after Columbia University refuses to accept women
- Oct 15 Amsterdam Central Station officially opens
- Oct 18 First all-NYC "World Championship" Baseball Series; New York Giants (NL) play Brooklyn Bridegrooms (AA); Giants go on to win series, 6-3
Before Dawn
Oct 20 Gerhart Hauptmann's play "Vor Sonnenaufgang" (Before Dawn) premieres in Berlin to a scandalous reception
- Oct 24 Softball rules adopted by Mid Winter Indoor Baseball League
- Oct 29 "World Championship" Baseball Series, Polo Grounds, NYC: defending champion NY Giants (NL) beat Brooklyn Bridegrooms (AA), 3-2 in Game 9 to claim series, 6-3
- Oct 29 Queen Victoria grants Cecil Rhodes rights to Zambezia
- Oct 29 Stanley Park dedicated in Vancouver, British Columbia
- Oct 31 Exposition Universelle (World's Fair) in Paris closes after 32 million visitors
Admirals
Aviators
Gangsters
Generals
Industrialists
Suffragists