Lewis and Clark Centennial Exposition
Jun 1 Lewis and Clark Centennial Exposition opens in Portland, Oregon
Roosevelt Tries to End Russo-Japanese War
Jun 8 US President Theodore Roosevelt sends identical notes to Japan and Russia urging them to negotiate and end hostilities, offering his personal services
45th British Open
Jun 9 British Open Men's Golf, St Andrews: Scotsman James Braid wins his 2nd Open title 5 strokes ahead of runners-up Rowland Jones and J.H. Taylor
- Jun 10 1st forest fire lookout tower placed in operation at Greenville, Maine
- Jun 11 Penns Railroad debuts fastest train in world (NY-Chicago in 18 hrs)
- Jun 13 New York Giants future Baseball Hall of Fame pitcher Christy Mathewson throws his 2nd no-hitter, beating Chicago Cubs, 1-0 at West Side Grounds, Chicago
- Jun 18 Russian police open fire on a workers' rights demonstration in Łódź, Congress Poland, killing 10, and leading to an armed insurrection against the occupying forces
- Jun 21 Polish workers in Łódź, Congress Poland stage strikes and insurrection against Russian occupation; quashed by tsars' troops after a few days
- Jun 24 US National Championship Women's Tennis, Philadelphia CC: Elisabeth Moore wins her 4th US singles title; beats Helen Homans 6-4, 5-7, 6-1
- Jun 25 Tsarist Russian troops in Łódź, Congress Poland crush workers' militia insurrection against Russian occupation; 151-200 workers killed and over 1,000 injured
- Jun 27 Industrial Workers of the World (IWW) is established at "The "Continental Congress of the Working Class" in Chicago, Illinois; members include representatives of the Socialist Labor Party/Socialist Trades & Labor Alliance, Socialist Party of America, Western Federation of Miners and the International Working People's Association
- Jun 27 Russian sailors mutiny aboard battleship "Potemkin" and sail for Odessa
Historic Publication
Jun 30 27 year-old clerk Albert Einstein publishes his theory of special relativity, the relationship between space and time in equation E=mc2
Deakin Returns to Power
Jun 30 Conservative Australian Prime Minister George H. Reid is forced to resign and Alfred Deakin returns to power on July 5
- Jun 30 In Russia, the "Potemkin" arrives at Odessa, where sailors take the bodies of dead crewman ashore; sailors join civilians in revolutionary actions of the '1905 Revolution'
- Jun 30 The crew of the Russian battleship "Georgei Pobiedonosets" mutinies in support of the "Potemkin", which mutinied three days earlier
Authors
Civil Rights Activists
Inventors
Kings
Revolutionaries
Scientists