- Oct 1 Dutch railway Alkmaar-Receiver opens
- Oct 1 Henry Huntington buys LA Railway
- Oct 1 Jews are expelled from Kyiv, Ukraine
- Oct 1 The Vienna University of Economics and Business Administration is founded under the name k.u.k. Exportakademie.
- Oct 1 Tsar Nikolay II expels Jews from major Russian cities
Vienna Philharmonic
Oct 6 Gustav Mahler conducts his first Vienna Philharmonic concert
- Oct 6 Phi Mu Alpha Sinfonia Fraternity founded at the New England Conservatory of Music in Boston, Massachusetts
- Oct 8 First Canadian Intercollegiate football game: McGill beats Queen's, 3-2
- Oct 12 Establishment of the first town council in Mateur.
- Oct 18 American flag raised in Puerto Rico
- Oct 20 NC Mutual & Provident Insurance Company forms
Admirals
Aviators
Gangsters
Generals
Industrialists
Suffragists