A golden jubilee marks a 50th anniversary. It variously is applied to people, events, and nations.
The Singapore50 logo representing the golden jubilee celebrations.
George I was King of Greece from 30 March 1863 until his assassination in 1913.
Photograph of George I, c. 1912
Portrait by August Schiøtt, 1853
George and his family, 1862: (back row left to right) Frederick, Christian IX, George; (front row left to right) Dagmar, Valdemar, Queen Louise, Thyra, Alexandra
Photograph by Southwell Bros., 1863