1901 - The first exhibition of the 19-year-old painter Pablo Picasso opened in Paris.
1908 - Grover Cleveland, who served as President of the United States twice, died.
1916 - The First Battle of the Somme began during World War I.
1948 - The Soviet Union began its blockade of Berlin, halting road traffic entering the city from West Germany.
1973 - Éamon de Valera resigned as President of Ireland at the age of 90.
2001 - The Mayon Volcano in the Philippines erupted, releasing burning ash and truck-sized rocks, causing at least 25,000 people to flee.
2002 - In Tanzania, a passenger train traveling from Dar es Salaam to the northwestern town of Kigoma derailed, resulting in 281 deaths.
2004 - Iraqi militants launched coordinated attacks on local security forces, leading to more than 100 deaths and over 320 injuries.
2007 - Saddam Hussein's widely known cousin, Ali Chemical, was sentenced to death for orchestrating a military campaign that used toxic gases against the Kurds in Iraq during the 1980s.
2010 - John Isner and Nicolas Mahut played the longest match in tennis history.
2012 - A wildfire broke out in Wyoming, displacing thousands from their homes.
