On this day in...

1752 - Benjamin Franklin conducted his famous lightning experiment during a thunder storm.

1943 - The ballpoint pen was patented by Hungarian, Lazlo Biro.

1986 - Jerry Garcia of The Grateful Dead lapsed into a five day diabetic coma.

1993 - British comedian Les Dawson, whose television shows include Blankety Blank, died.

1998 - Jennifer Aniston denied rumours that she was dating Brad Pitt, saying that the two were just good friends. They later married.

2000 - The Millennium Bridge opened from St Paul's Cathedral to the Tate Modern.

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