Nature Communications In a study published in Nature Communications, scientists unearth in Alberta, Canada and identify what may be the earliest known pachycephalosaur (bone-headed dinosaur), "Acrotholus audeti".
Eurasiatic Researchers discover statistical evidence for the proposed Eurasiatic language superfamily, dating back 15,000 years.
University of California, Davis A new study by the University of California, Davis suggests that all Europeans are related to small group of ancestors dating back only 1,000 years.
United Kingdom The United Kingdom's Queen Elizabeth II announces she will miss a Commonwealth meeting for the first time in 40 years. Prince Charles will attend on her behalf.
South Carolina governor Former Governor of South Carolina Mark Sanford wins a special election for South Carolina's 1st congressional district defeating Elizabeth Colbert Busch.
Jack Markell Governor Jack Markell signs a bill making Delaware the 11th U.S. state to legalize same-sex marriage.
Ireland Ireland's parliament, the Oireachtas, passes legislation pardoning thousands of soldiers who left the Irish Army to fight with the Allies during World War II.
South Africa Thousands of striking bus workers march through South Africa's biggest city, Johannesburg.
2012 Aurora, Colorado shooting Paperwork filled on behalf of Aurora shooting suspect James Holmes states that he plans to plead not guilty by reason of insanity.
India India agrees to demolish some bunkers near the Chinese border in order to end a three-week-long standoff in the Himalayas.
Italy The Italian cargo ship "Jolly Nero" crashes into the port of Genoa, destroying the traffic control tower. Seven people die, four are injured and at least two are missing.
Orissa State Bears attack villages in Orissa, India, killing eight people and injuring a dozen more. The bears are said to have become aggressive due to excessive consumption of the mahua flower.
Mayon Volcano Mayon Volcano erupts in the Philippines killing four mountain climbers and requiring four other climbers trapped near the summit to be rescued.
China China's April import and export figures beat expectations, potentially easing concerns that its economy is lagging.
Dow Jones Industrial Average The Dow Jones Industrial Average closes above the 15,000 mark for the first time, setting a record. The S&P 500, up 0.5%, sets a record high as well.
Reserve Bank of Australia The Reserve Bank of Australia cuts its benchmark interest rate to 2.75%, down from 3.00%.
Microsoft Microsoft acknowledges and plans to address complaints with its Windows 8 operating system – changes will be available later this year.
Bank of China The Bank of China halts business with a North Korean bank accused by the United States of financing Pyongyang's missile and nuclear programs.
American American As I Lay Dying frontman and lead vocalist Tim Lambesis is arrested on charges of attempting to hire a hitman.
Nigeria An attack in Nigeria, suspected to be perpetrated by Islamic sect Boko Haram, kills 55 people.
Philippines Four Filipino UN peacekeepers are kidnapped by armed men while patrolling the demilitarized area between Syria and the Israeli-annexed Golan Heights.