Thirty Years' War | New Year's Day | New Year's Eve | New Year | Chinese New Year | One Year Later | Thirty Seconds to Mars | Korea under Japanese rule | Ja Rule | NASCAR Rookie of the Year | High School Musical 3: Senior Year | Four Year Strong | Song of the Year | Grammy Award for Song of the Year | Lunar New Year | International Geophysical Year | away goals rule | Latin Grammy Award for Album of the Year | Helms Foundation College Basketball Player of the Year | Grammy Award for Record of the Year | A Good Year | Wisden Cricketers of the Year | Thirty-Nine Articles | Grammy Award for Album of the Year | Cloistered rule | year | Ten Minute Rule | Taiwan under Japanese rule | My Favorite Year | Lo Nuestro Award for Tropical New Artist of the Year |
Under the 1958 act, most documents held by the PRO were kept "closed" (or secret) for 50 years: under an amending act of 1967 this period was reduced to 30 years (the so-called "thirty year rule").