Wikipedia:Selected anniversaries/January 7
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January 7: Christmas (Christianity-Julian calendar).
- 1558 - Francis, Duke of Guise (pictured) retook Calais, England's last continental possession, for France.
- 1610 - Galileo Galilei first observed the Jovian satellites Io, Europa and Callisto through his telescope.
- 1785 - Frenchman Jean-Pierre Blanchard and American John Jeffries became the first to cross the English Channel by balloon.
- 1979 - Phnom Penh fell to the People's Army of Vietnam, effectively ending the Democratic Kampuchea regime.
Recent days: January 6 – January 5 – January 4
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