Diamond jubilee cinemas for 100 weeks or more. The longest reigning monarch in history, Sobhuza II of Swaziland, celebrated his diamond jubilee in 1981, dating from when he gained direct rule. Diamond jubilee A diamond jubilee is a celebration held to mark a 60th anniversary of an event related to a person (e.g. accession to the throne, wedding, etc.). The 60-year reign of Queen Victoria, which was commemorated as the Diamond Jubilee of Queen Victoria was celebrated on 22 June 1897. The Diamond Jubilee of Queen Elizabeth II was celebrated across the Commonwealth of Nations throughout 2012. George III of the United
Platinum jubilee Platinum jubilee A platinum jubilee is a celebration held to mark an anniversary. Among monarchies, it usually refers to a 70th anniversary. Bhumibol Adulyadej of Thailand was the most recent monarch to celebrate a platinum jubilee; he died shortly after official celebrations in Thailand took place. The next currently reigning monarch who would celebrate a platinum jubilee is Queen Elizabeth II ("technically" only as Queen of the United Kingdom, Australia, Canada and New Zealand, as all of the other countries she is at present queen of had yet to gain independence at the time of her accession), should she still