Deepwater Horizon, an oil rig owned by BP and Transocean, sinks to the bottom of the Gulf Of Mexico after having a blowout two days earlier. The well then created the largest oil spill in U.S. history by constantly gushing oil through the damaged wellhead. People along the Gulf Coast are working to clean oil from the Gulf and stop the rig from leaking with support from BP.

The United States Air Force retires the remaining F-117 Nighthawk aircraft in service.

243 people are injured in pro-democracy protest in Nepal after Nepali security forces open fire on protesters against King Gyanendra.

Japan's Prime Minister Junichiro Koizumi apologized about Japan's war records.

Two fuel trains collide in Ryongchon, North Korea, killing up to 150 people.

In a pre-dawn raid, federal agents seize six-year-old Elián González from his relatives' home in Miami, Florida.

The Big Number Change takes place in the United Kingdom.

Second Battle of Elephant Pass, Tamil Tigers capture a strategic Sri Lankan Army base and hold it for 8 years.

Disney's Animal Kingdom opens at Walt Disney World near Orlando, Florida, United States.

Haouch Khemisti massacre in Algeria