- Apr 1 Google introduces Gmail: the launch is met with skepticism on account of the launch date
- Apr 2 Islamist terrorists involved in the 11 March 2004 Madrid attacks attempt to bomb the Spanish high-speed train AVE near Madrid. Their attack is thwarted.
- Apr 3 157th Grand National: Graham Lee wins aboard Amberleigh House; trainer Ginger McCain's equal record 4th GN victory
- Apr 3 Islamic terrorists involved in the 11 March 2004 Madrid attacks are trapped by the police in their apartment and kill themselves
- Apr 5 66th NCAA Men's Basketball Championship: Connecticut beats Georgia Tech, 82-73; Huskies' forward Emeka Okafor named tournament Most Outstanding Player
Sports History
Apr 6 23rd NCAA Women's Basketball Championship: Connecticut beats Tennessee, 70-61; UConn's Diana Taurasi is named Most Outstanding Player for the 2nd straight year
9/11 Attack on NY's World Trade Towers
Apr 8 U.S. National Security Advisor Condoleezza Rice testifies before the 9/11 Commission
US Masters Golf
Apr 11 68th US Masters Tournament, Augusta National GC: Phil Mickelson claims his first major title with a birdie on the final hole to win by 1 stroke over Ernie Els of South Africa
Cricket History
Apr 12 West Indian cricket batsman Brian Lara smashes highest individual score in a Test innings with 400 not out (773 mins; 582 balls; 43x4, 4x6) in drawn 4th Test against England at Antigua
Baseball Record
Apr 13 Barry Bonds hits his 661st career home run, passing his godfather Willie Mays on the MLB all-time list
- Apr 16 The super liner Queen Mary 2 embarks on her first Transatlantic crossing, linking the golden age of ocean travel to the modern age of ocean travel.
- Apr 18 50th British Academy Television Awards: "Little Britain" Best Comedy, "Buried" Best Drama
- Apr 18 Jason Koumas scores a last minute goal in a 1-0 win against Sunderland
- Apr 19 108th Boston Marathon: Kenyan double; Timothy Cherigat takes men's title in 2:10:37; Catherine Ndereba wins her 3rd women's event in 2:24:27
- Apr 20 In Iraq, 12 mortars are fired on Abu Ghraib Prison by insurgents, killing 22 detainees and wounding 92.
CMT Music Awards
Apr 21 3rd CMT Flameworthy Video Music Awards: Toby Keith, Shania Twain & Kenny Chesney win
Music Concert
Apr 21 Rock for the Rainforest benefit concert held at Carnegie Hall, NYC; performers include: Sting, Elton John, James Taylor, Billy Joel, Bette Midler, and Little Jimmy Scott
- Apr 22 Two fuel trains collide in Ryongchon, North Korea, killing up to 150 people.
Sports History
Apr 24 NFL Draft: Ole Miss quarterback Eli Manning first pick by San Diego Chargers
- Apr 24 United States lifts economic sanctions imposed on Libya 18 years ago, as reward for cooperation in eliminating weapons of mass destruction
Shrek the Sheep
Apr 28 Shrek the sheep from Tarras, Central Otago, New Zealand, is finally shorn live on TV after 6 years avoidance; the fleece weighed 27 kg (60 lb)
Battle of Interest
Apr 29 Dick Cheney and George W. Bush testify before the 9/11 Commission in a closed, unrecorded hearing in the Oval Office
- Apr 29 Oldsmobile builds its final car ending 107 years of production
Mean Girls
Apr 30 "Mean Girls", teen comedy film released starring Lindsay Lohan and Rachel McAdams and written by Tina Fey
- Apr 30 U.S. media release graphic photos of American soldiers abusing and sexually humiliating Iraqi prisoners at Abu Ghraib prison
Admirals
Aviators
Gangsters
Generals
Industrialists
Suffragists