Kingdom of Prussia

Ethiopian Empire

Ethiopia's emperors traced their line to Menelik I, said to be the son of Solomon and the Queen of Sheba, and the 1955 constitution declared that the emperor descended from him without interruption.

Ottoman Empire

On 17 November 1922 the last sultan, Mehmed VI, left Constantinople on the British warship HMS Malaya.

Qing dynasty清

Historians estimate the Taiping Rebellion killed somewhere between 20 and 30 million people, a toll that rivals the First World War fought half a century later.

Joseon

Court historians kept the Veritable Records of the Joseon Dynasty from 1392 to 1865. The set runs to 1,893 volumes and is on UNESCO's Memory of the World register.

British Empire

Encyclopedia.com says British Caribbean plantations, mainly on Barbados and Jamaica, received almost one and a half million enslaved Africans, 23 percent of the Atlantic trade.