A bit of context for the period:
2011 is also the 50th anniversary year of IBMs electric typewriter
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Armonk, NY, USA - 27 Jul 2011: The IBM (NYSE: IBM) Selectric typewriter turns 50 on July 31, commemorating a design icon that revolutionized the day-to-day lives of office workers around the world. The Selectric's half-century birthday coincides with IBM's Centennial year and the release of a new U.S. postage stamp honoring the Selectric as an icon of design.
The IBM Selectric became an instant sensation upon its debut on July 31, 1961, and remained the typewriter found on most office desks until the brand was retired 25 years later, in 1986...
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http://www-03.ibm.com/press/us/en/pr...ease/35140.wss
and the 50th anniversary of the first manned space flight
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Yuri Alekseyevich Gagarin (Russian: Ю́рий Алексе́евич Гага́рин,[1] Russian pronunciation: [ˈjurʲɪj ɐlʲɪˈksʲejɪvʲɪtɕ ɡɐˈɡarʲɪn]; 9 March 1934 – 27 March 1968) was a Soviet pilot and cosmonaut. He was the first human being to journey into outer space, when his Vostok spacecraft completed an orbit of the Earth on April 12, 1961...
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http://en.wikipedia.org/wiki/Yuri_Gagarin
Also, Obama just turned 50.