Wikipedia:Selected anniversaries/January 7
January 7: Christmas according to the Julian calendar and many Orthodox Churches.
- 1785 - Travelling in a hot air balloon, Frenchman Jean-Pierre Blanchard and American John Jeffries became the first humans to cross the English Channel by air.
- 1927 - The first transatlantic telephone call was made from New York City to London.
- 1975 - OPEC raised the price of crude oil by 10 percent.
- 1979 - Pol Pot and the Khmer Rouge were overthrown in Democratic Kampuchea by Vietnamese troops.