Germany declared war on France and sent its first wave of troops to Belgium to start the attack.
Source
Tokyo had its hottest day on record, reaching a staggering 102.4°F (39.1°C).
'No Matter What' by Irish boy band Boyzone was released.
American coming-of-age teen comedy film 'The Princess Diaries' was released.
Morgan Freeman's car flipped over several times on the highway in Mississippi.
President Barack Obama announced his Clean Power Plan to take action on climate change.