UK, 
US, 
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IrelandAt A Glance
31 January 2011 at a glance
- Day of the week
- 31 January 2011 was a Monday.
- Billboard Hot 100 No. 1
- The Billboard Hot 100 No. 1 was “Hold It Against Me” by Britney Spears.
- Top Film of 2011
- The highest-grossing film worldwide released in 2011 was Harry Potter and the Deathly Hallows – Part 2.
- Bestselling Novel of 2011
- “The Litigators” by John Grisham was No. 1 on Publishers Weekly's US fiction list for 2011.
- Top-Rated TV Show
- “Sunday Night Football” (NBC) was No. 1 in the Nielsen ratings for the 2011–12 season.
- Star sign
- The star sign for 31 January is Aquarius.
- Chinese zodiac
- In the Chinese zodiac, 31 January 2011 fell in the Year of the Tiger.
- Birthstone
- The birthstone for January is Garnet.
- Moon phase
- The moon phase on 31 January 2011 was Waning Crescent.
On this day: 31 January
- 2003 The Waterfall rail accident occurs near Waterfall, New South Wales, Australia.
- 2007 Emergency officials in Boston mistakenly identify battery-powered LED placards depicting characters from Aqua Teen Hunger Force as Improvised explosive devices (IEDs), causing a panic.
- 2019 Abdullah of Pahang is sworn in as the 16th Yang di-Pertuan Agong of Malaysia.
- 2020 The United Kingdom's membership within the European Union ceases in accordance with Article 50, after 47 years of being a member state.
- 2022 Sue Gray, a senior civil servant in the United Kingdom, publishes an initial version of her report on the Downing Street Partygate controversy.
Famous people born on January 31
- Julián Alvarez, Argentine footballer (born 2000)
- Justin Timberlake, American singer-songwriter, dancer, and actor (born 1981)
- Minnie Driver, English singer-songwriter and actress (born 1970)
- Jackie Robinson, American baseball player and sportscaster (1919–1972)
Source: Wikipedia (CC BY-SA 4.0)
Choose your country: the charts, news and leaders change to match.
Events of 2011 in the United States
A selection from Wikipedia's '2011 in the United States'. Not a complete list.
- February 27 – The 83rd Academy Awards, hosted by James Franco and Anne Hathaway, are held at Kodak Theatre in Hollywood. Tom Hooper's The King's Speech wins four awards out of 12 nominations, including Best Picture and Best Director.
- March 11 – Following the Tōhoku earthquake and tsunami, the Pacific Tsunami Warning Center issues a tsunami warning to parts of the U.S. West Coast along the affected coastal areas in Alaska, Hawaii and the U.S. Territories in the Pacific Ocean.
- April 15 – Rio is released in theaters.
Life in the US in 2011
President
Barack Obama
Gas (per gallon)
$3.52
Loaf of Bread
$1.74
Average House
$242,300
Weekly Wage
$737
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