Construction began on the Hoover Dam in Nevada.
It was originally called the Boulder Dam.
Source
Nelson Mandela stepped down as President.
Dutch artist Wilfred Stijger broke the world record for the tallest sandcastle.
UK Prime Minister Boris Johnson resigned after numerous Conservative Party members voiced their lack of confidence in him.
The 10th James Bond movie, 'The Spy Who Loved Me,' premiered in London.
The world celebrated the introduction of sliced bread for the first time.
