September 30: Independence Day in Botswana (1966); Blasphemy Day
8P8C Ethernet connector
- 1399 – Henry Bolingbroke, Duke of Lancaster, deposed Richard II to become Henry IV of England, merging the Duchy of Lancaster with the crown.
- 1882 – The Vulcan Street Plant, the first hydroelectric central station to serve a system of private and commercial customers in North America, went on line in Appleton, Wisconsin, US.
- 1966 – Seretse Khama became the first President of Botswana when the Bechuanaland Protectorate gained independence from the United Kingdom.
- 1980 – Xerox, Intel and Digital Equipment Corporation published the first Ethernet specifications (8P8C connector pictured), currently the most widespread wired local area network (LAN) technology.
- 2009 – A 7.6 MW earthquake struck off the southern coast of Sumatra, Indonesia, killing 1,115 people and impacting an estimated 1.25 million people.
More anniversaries:
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