Albert Einstein’s theory of gravitational redshift was proven after a telescope in Chile observed a black hole.
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The opera 'Parsifal' by Richard Wagner premiered in Bayreuth, Germany.
The Summer Olympic Games opening ceremony was held outdoors for the first time ever.
Italian adventurer and author Giacomo Casanova was arrested in Venice for his offensive remarks on religion.
Asiana Airlines Flight 733 crashed in South Korea.
As part of the War of the Roses in England, the Battle of Edgcote took place.
