Soyuz TMA-20 The Soyuz TMA-20 spacecraft, carrying half of the members of Expedition 27 back from their crew rotation aboard the International Space Station, lands safely in Kazakhstan.
Kathy Hochul Kathy Hochul, the Democratic Party candidate, wins a special election to represent New York's 26th congressional district in the United States House of Representatives.
Lord Wei Lord Wei, who was in charge of David Cameron's Big Society project, has announced he is standing down from the role.
Political prisoner More than 30 political prisoners go on hunger strike at Insein Prison in Burma to protest against their treatment.
Thailand Thai authorities lift a special security law used to curtail violent demonstrations ahead of elections on 3 July.
Manslaughter A British police officer is to be charged with manslaughter over the death of newspaper seller Ian Tomlinson during the 2009 G-20 protests.
Egypt Former Egyptian President Hosni Mubarak and his two sons are to be tried over the deaths of anti-government protesters.
Somalia Security forces in Somalia seize two planes carrying ransom money for pirates, and detain six foreigners.
U.S. President U.S. President Barack Obama meets Queen Elizabeth II and Prince Philip, Duke of Edinburgh and senior royals at the start of a three-day state visit to the United Kingdom.
United States A delegation from the United States arrives in the North Korean capital Pyongyang to assess the food shortage in the country.
Prime Minister Israeli Prime Minister Benjamin Netanyahu addresses a joint session of the United States Congress and says he is prepared to make "far-reaching compromises" for a peace deal with Palestinians, but states that Israel will not return to its pre-1967 borders.
At least five people die and many more are injured as tornadoes and severe storms hit near the US city of Oklahoma City.
The search continues for survivors of the 2011 Joplin tornado as 1,500 people are unaccounted for in the US town.
Abadan An explosion at an Abadan oil refinery in southwestern Iran during a visit by the President of Iran Mahmoud Ahmadinejad leads to a fire killing two workers and injuring 20.
Grímsvötn Ash from the Grímsvötn volcanic eruption continues to spread over the United Kingdom and Western Europe leading to cancellation of up to 500 airline flights.
TEPCO The Tokyo Electric Power Company (TEPCO) claims that three reactors at the Fukushima Daiichi Nuclear Power Plant suffered partial meltdowns following the 2011 Tōhoku earthquake and tsunami; it had previously announced that only one reactor had suffered a meltdown.
Gearbox Software Gearbox Software announces that the video game "Duke Nukem Forever", infamous for its 14-year development cycle, has gone gold and will (presumably) meet its current release date of June.
Oprah Winfrey US television personality Oprah Winfrey records the final episode of "The Oprah Winfrey Show".
United Nations The United Nations claims that about 20,000 people have fled the Abyei region for Agok in Southern Sudan after Sudanese forces took control.
Syrian uprising John Baird, the Canadian Minister of Foreign Affairs announces that Canada will be imposing sanctions against Syria.
Human rights organisations estimate that the Government of Syria has killed 1,000 civilians so far during the protests.
Suicide bomber A suicide bomber attacks the headquarters of Kazakhstan's security service, causing casualties.
Muammar Gaddafi Smoke is seen rising from Muammar Gaddafi's compound in Tripoli, Libya, following a NATO airstrike which reportedly kills three people.
2011 Yemeni protests Fresh clashes take place in Yemen between police and opposition tribesmen who have taken control of several government buildings in the capital Sana'a.
Tunisia Clashes break out in southern Tunisia between local residents and Libyan refugees fleeing that country's civil war.