Wikipedia AI summary

Ruby jubilee

A ruby jubilee marks a 40th anniversary.

AI wikipedia summery

PlatinumSapphireDiamondGoldenSilverJubileesWedding anniversaryList of current reigning monarchs by length of reignList of longest-reigning monarchsHierarchy of precious substancesKing Carl XVI Gustaf of SwedenQueen Margrethe II of DenmarkSultan Qaboos bin Said of OmanSultan Hassanal Bolkiah of BruneiTāufaʻāhau Tupou IV of TongaKing Hussein of Jordan6 February 1992Queen Elizabeth II of the United Kingdom and the other Commonwealth RealmsPrince Rainier III of MonacoKing Bhumibol Adulyadej (Rama IX) of ThailandFranz Joseph II of LiechtensteinEmperor Showa of JapanSālote Tupou III of TongaKing Gustaf V of SwedenSobhuza II of SwazilandKing Alfonso XIII of SpainEmperor Meiji of JapanKing Chulalongkorn (Rama V) of SiamGeorge II, Duke of Saxe-MeiningenKing Carol I of Romania

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