- Jun 6 President Emile Loubet of France and Minister of Foreign Affairs Theophile Declasse visit London, furthering the cause of Entente Cordiale between Britain and France
- Jun 11 British Open Men's Golf, Prestwick GC: Harry Vardon wins his 4th Open title by 6 strokes from younger brother Tom Vardon
- Jun 12 Niagara Falls, Ontario incorporated as a city
- Jun 12 The Sigma Alpha Iota International Music Fraternity is founded at the University of Michigan School of Music
- Jun 15 The Serbian Assembly meets and elects Prince Peter Karageorgevich king
- Jun 16 1st Highlander (Yankee) shut-out victory 1-0 over White Sox
Event of Interest
Jun 16 Ford Motors under Henry Ford incorporates
Henry Ford
- Jun 16 Pepsi Cola company forms
Event of Interest
Jun 16 Roald Amundsen commences the first east-west navigation of the Northwest Passage by leaving Oslo, Norway
Roald Amundsen
- Jun 16 Reichstag elections with gains for the Social Democratic Party of Germany
- Jun 24 Russia prohibits meetings dealing with Zionist
- Jun 25 Yanks & White Sox end deadlocked at 6-6 in 18
- Jun 25 Boston Beaneater Wiley Piatt is only 20th-century pitcher to lose 2 complete games in one day, falling to Pittsburgh 1-0 & 5-3
- Jun 27 US National Championship Women's Tennis, Philadelphia CC: Elisabeth Moore beats Marion Jones 7-5, 8-6 for her third of 4 US singles titles
- Jun 29 US Open Men's Golf, Baltusrol GC: Willie Anderson of Scotland first to win the Open twice; beats countryman David Brown by 2 strokes in an 18-hole playoff
- Jun 29 British government protests against abuses in Belgian Congo
- Jun 30 Wimbledon Women's Tennis: Dorothea Chambers beats Ethel Larcombe 4-6, 6-4, 6-2, the first of 7 titles
- Jun 30 Wimbledon Men's Tennis: Laurence Doherty beats Frank Riseley 7-5, 6-3, 6-0 for his second consecutive title