OTD:

In 762, Baghdad was founded by Abbasid Caliph Al-Mansur, quickly becoming a center of learning, culture, and trade, marking the start of its prominence during the Golden Age of Islam.

In 1419, the First Defenestration of Prague occurred in Bohemia, where Hussite protesters threw Catholic officials out of a window, sparking the Hussite Wars.

In 1898, Vincent van Gogh's painting "Portrait of Dr. Gachet" was sold at auction in Paris for a then-record $82.5 million, highlighting his posthumous fame and influence.

In 1898, Booker T. Washington founded the National Negro Business League in Hampton, Virginia, to promote the economic development and business interests of African Americans.

In 1962, the Trans-European Inland Waterway network was established in the UK, connecting major rivers and canals to enhance trade and commerce across Europe.

In 1966, England's national football team won the FIFA World Cup, defeating West Germany 4-2 in a historic final at Wembley Stadium, marking England's only World Cup triumph.

In 1975, former Teamsters Union president Jimmy Hoffa disappeared from a restaurant parking lot in suburban Detroit, Michigan, in a mystery that remains unsolved.

In 2017, the hard fork of Bitcoin resulted in the creation of Bitcoin Cash, addressing scalability issues by increasing the block size and highlighting debates within the cryptocurrency community.