Editing TIMELINE (section)

===June 2004===
* June 1 - Twelve-year-old Satomi Mitarai, a Japanese schoolgirl attending Okubo Elementary School in Sasebo, Japan is murdered. Her killer, an 11-year-old classmate identified by Japanese authorities as "Girl A", becomes the basis for the Nevada-tan Internet phenomenon.
* June 3 - All outgoing flights from the UK are temporarily grounded following an air traffic control computer failure. (BBC)
* June 3 - Central Intelligence Agency director George Tenet tenders his resignation, citing "personal reasons". John E. McLaughlin, CIA Deputy Director, becomes the acting Director until a permanent Director is chosen and confirmed by Congress.
* June 4 - Marvin Heemeyer destroys many local buildings with a home-made tank in Granby, Colorado.
* June 5 - Former United States President Ronald Reagan dies at age 93 in Bel-Air, California.
* June 6 - The 60th anniversary of D-Day is remembered by world leaders.
* June 6 - The film Harry Potter and the Prisoner of Azkaban is released into theatres.
* June 7 - Tampa Bay Lightning defeats Calgary Flames in 2004 Stanley Cup Finals.
* June 8 - The first transit of Venus since 1882 occurs; the next one will occur in 2012.
* June 8 - The G8 Summit takes place over the next 2 days on Sea Island, in Georgia, USA.
* June 8 - The pickled heart of Louis XVII of France is buried in the royal crypt at Saint-Denis.
* June 11 - Terry Nichols is spared the death penalty by an Oklahoma state court on murder charges stemming from the 1995 Oklahoma City bombing. The decision comes on the third anniversary of the execution of his co-defendant, Timothy McVeigh, in Terre Haute, Indiana.
* June 11 - After the first presidential state funeral since 1994, President Ronald Wilson Reagan is laid to rest at Simi Valley, California, at the site of the Reagan Presidential Library.
* June 12 - A 1.3 kg chondrite type meteorite strikes a house in Ellerslie, New Zealand, causing serious damage but no injuries.
* June 15 - The Detroit Pistons upset the heavily favored Los Angeles Lakers to win the 2004 NBA Finals, 4 games to 1.
* June 16 - The National Commission on Terrorist Attacks Upon the United States (or "9/11 Commission") issues an initial report of its findings.
* June 21 - In Mojave, California, SpaceShipOne becomes the first privately-funded spaceplane to achieve spaceflight.
* June 28 - Union Pacific and Burlington Northern Santa Fe trains collide in a rural area outside of San Antonio, Texas. Forty cars are derailed, including one chlorine car. Three people die, another 50 people are hospitalized because of exposure to the gas.
* June 28 - The U.S.-led coalition occupying Iraq transfers sovereignty to an Iraqi Interim Government.
* June 28 - Canadian election: The Liberal Party, led by Paul Martin, is reduced to a minority government, after holding a majority since November 1993.
* June 30 - Preliminary hearings begin in Iraq in the trial of former president Saddam Hussein, for war crimes and crimes against humanity.