Question: Which year celebrated Apollo 11's 40th anniversary?
About the article "Apollo 11", section "Moon race".

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The Soviet Union was secretly attempting to compete with the US in landing a man on the Moon but had been hampered by repeated failures in development of a launcher comparable to the Saturn V. Meanwhile, they tried to beat the US to return lunar material to the Earth by means of unmanned probes.
On July 13, three days before Apollo 11's launch, they launched Luna 15, which reached lunar orbit before Apollo 11.
During descent, a malfunction caused Luna 15 to crash in Mare Crisium about two hours before Armstrong and Aldrin took off from the surface.
The Jodrell Bank Observatory radio telescope in England was later discovered to have recorded transmissions from Luna 15 during its descent, and this was published in July 2009 on the 40th anniversary of Apollo 11.
Frank Sinatra's 1964 recording of "Fly Me To The Moon" became closely associated with NASA's Apollo space program.
A copy of the song was played on the Apollo 10 mission which orbited the moon.
It became "the first music ever heard on the moon" when played on a portable cassette player by Apollo 11 astronaut Buzz Aldrin after he stepped onto the moon.
The song’s association with the Apollo 11 was reprised many years later when Diana Krall sang it at the mission's 40th anniversary commemoration ceremony.
She also sang a “slow and solemn version” in 2012 at the national memorial service for Apollo 11 mission commander Neil Armstrong. 
On July 20, 2009, the 40th anniversary of the Apollo 11 mission, Google introduced the Google Earth version of Google Moon, which allows users to view satellite images of the Moon.
It was announced and demonstrated to a group of invited guests by Google along with Buzz Aldrin at the Newseum in Washington, D.C. 
As part of Apollo 11's 40th anniversary in 2009, NASA spearheaded an effort to digitally restore the existing videotapes of the mission's live televised moonwalk.
After an exhaustive three-year search for missing tapes of the original video of the Apollo 11 moonwalk, NASA concluded the data tapes had more than likely been accidentally erased.
The Moon landing data was recorded by a special Apollo TV camera which recorded in a format incompatible with broadcast TV.
This resulted in lunar footage that had to be converted for the live television broadcast and stored on magnetic telemetry tapes.
During the following years, a magnetic tape shortage prompted NASA to remove massive numbers of magnetic tapes from the National Archives and Records Administration to be recorded over with newer satellite data.
Stan Lebar, who led the team that designed and built the lunar television camera at Westinghouse Electric Corporation, also worked with Nafzger to try to locate the missing tapes.
With a budget of $230,000, the surviving original lunar broadcast data from Apollo 11 was compiled by Nafzger and assigned to Lowry Digital for restoration.
The video was processed to remove random noise and camera shake without destroying historical legitimacy.
The images were from tapes in Australia, the CBS News archive, and kinescope recordings made at Johnson Space Center.
The restored video, remaining in black and white, contains conservative digital enhancements and did not include sound quality improvements. 
The School celebrated its 40th anniversary in 2005.