Former President Barack Obama gave his nominee acceptance speech.
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Clarence Saunders founded the Piggly Wiggly store in Memphis, Tennessee, US.
The First Battle of the Marne began during World War I.
The Philadelphia Eagles beat the Green Bay Packers 34-29 in Brazil in the first NFL game in South America.
'Victoria' became the world's first recorded ship to have circumnavigated the globe when it arrived back in Spain.
The World Surf League closed the gender pay gap by giving equal prizes to all genders.
