Egyptian security forces fire upon pro-Mohamed Morsi demonstrators in Cairo, leaving dozens of people dead.
Tunisian opposition leader Mohamed Brahmi (pictured) is assassinated in Tunis.
A train crash in Santiago de Compostela, Spain, kills 79 people.
Thor's hero shrew, the first known sister species to the armored shrew, is discovered.
Catherine, Duchess of Cambridge, gives birth to a son, Prince George of Cambridge, third in line to succeed Queen Elizabeth II.
A series of earthquakes in Dingxi, Gansu, China, kills at least 95 people and injures more than 1,000 others.
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