UK, 
US, 
Australia & 
IrelandAt A Glance
20 December 2010 at a glance
- Day of the week
- 20 December 2010 was a Monday.
- Billboard Hot 100 No. 1
- The Billboard Hot 100 No. 1 was “Firework” by Katy Perry.
- Top Film of 2010
- The highest-grossing film worldwide released in 2010 was Toy Story 3.
- Bestselling Novel of 2010
- “The Girl Who Kicked the Hornet's Nest” by Stieg Larsson was No. 1 on Publishers Weekly's US fiction list for 2010.
- Top-Rated TV Show
- “American Idol” (FOX) was No. 1 in the Nielsen ratings for the 2010–11 season.
- Star sign
- The star sign for 20 December is Sagittarius.
- Chinese zodiac
- In the Chinese zodiac, 20 December 2010 fell in the Year of the Tiger.
- Birthstone
- The birthstone for December is Turquoise.
- Moon phase
- The moon phase on 20 December 2010 was Full Moon.
On this day: 20 December
- 1999 Macau is handed over to China by Portugal.
- 2004 A gang of thieves steal £26.5 million worth of currency from the Donegall Square West headquarters of Northern Bank in Belfast, Northern Ireland, United Kingdom, one of the largest bank robberies in British history.
- 2007 Elizabeth II becomes the oldest monarch in the history of the United Kingdom, surpassing Queen Victoria, who lived for 81 years and 243 days.
- 2007 The Portrait of Suzanne Bloch (1904), by the Spanish artist Pablo Picasso, and O Lavrador de Café by Brazilian modernist painter Cândido Portinari, are stolen from the São Paulo Museum of Art in Brazil. Both will be recovered a few weeks later.
- 2019 The United States Space Force becomes the first new branch of the United States Armed Forces since 1947.
Famous people born on December 20
- Kylian Mbappé, French footballer (born 1998)
- Jonah Hill, American actor, producer, and screenwriter (born 1983)
- JoJo, American singer and actress (born 1990)
- Prince George, Duke of Kent, Duke of Kent (1902–1942)
Source: Wikipedia (CC BY-SA 4.0)
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Events of 2010 in the United States
A selection from Wikipedia's '2010 in the United States'. Not a complete list.
- April 5 – Adventure Time premieres on Cartoon Network.
- May 7 – Iron Man 2, directed by Jon Favreau, is released by Marvel Studios as the third film in the Marvel Cinematic Universe (MCU) and the direct sequel to 2008's Iron Man.
- June 18 – Pixar Animation Studios' eleventh feature film, Toy Story 3, the sequel to 1999's Toy Story 2, is released in theaters, surpassing 2003's Finding Nemo as the studio's biggest financial success.
Life in the US in 2010
President
Barack Obama
Gas (per gallon)
$2.78
Loaf of Bread
$1.64
Average House
$222,900
Weekly Wage
$718
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