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The Burj Khalifa, the world's tallest building is officially opened
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Ethiopian Airlines Flight 409 crashes into the Mediterranean Sea shortly after take-off from Beirut Rafic Hariri International Airport, killing all 90 people on-board.
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Unknown criminals pour more than 2.5 million liters of diesel oil and other hydrocarbons into the river Lambro, in Northern Italy, causing an environmental disaster.
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Central Chile is hit with an 8.8 magnitude earthquake.
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Governor General Michaëlle Jean issued an apology to Rwanda for Canada's "inaction" during the Rwandan Genocide in 1994
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Donald Ethell becomes lieutenant governor of Alberta, replacing Norman Kwong.
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A forest fire forces thirteen hundred people away from their homes in Wemotaci.
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The 36th G8 summit is held in Huntsville, Ontario, Canada. Consecutively, the 4th G20 summit is also held in Toronto, Ontario, Canada on the same dates.
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Her Majesty Queen Elizabeth II and Prince Philip arrive in Halifax starting a nine day tour of Canada.
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California's Proposition 8, the ballot initiative prohibiting same-sex marriage passed by the state's voters in 2008, was overturned by Judge Vaughn Walker in the case Perry v. Schwarzenegger.
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2010 Summer Youth Olympic Games, first ever Youth Olympics, officially starts in Singapore.
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Operation Iraqi Freedom ends, with the last of the United States brigade combat teams crossing the border to Kuwait.
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Manila hostage crisis, which occurred at the Quirino Grandstand in Manila, where a dismissed police officer took hostage a tour bus full of Chinese nationals.
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Canterbury earthquake: a 7.1 magnitude earthquake which struck the South Island of New Zealand at 4:35 am causing widespread damage and several power outages.
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The 54 year run of the soap opera As the World Turns ends as its final episode is broadcast.
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- Roy Halladay pitches the second no-hitter in MLB Postseason History during Game 1 of the NLDS versus the Cincinnati Reds
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The Netherlands Antilles are dissolved
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The 2010 Copiapó mining accident in Copiapó, Chile comes to an end as all 33 miners arrive at the surface after surviving a record 69 days underground awaiting rescue.
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Australian rock band Powderfinger, perform their last concert at the Brisbane River Stage
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The Bombardment of Yeonpyeong occurs on Yeonpyeong Island, South Korea. The North Korean artillery attack kills 2 civilians and 2 South Korean marines.
