Edward Snowden publicly declared that he was the source of the leaked NSA documents.
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Queen Elizabeth II opened London Gatwick Airport.
Soviet Space Program's Vega 1, which was launched on December 15, 1984, released a space probe to enter Venus.
The Church of England adopted the Book of Common Prayer.
Dictator Efraín Rios Montt declared himself the president of Guatemala.
Rock star Paul McCartney's 'Ram' album went Gold.
