Peking

c. 1655 romanization of the Nanking court dialect Mandarin pronunciation of Chinese 北京 (Běijīng), reinforced by Postal Romanization from before the modern palatalization of [k] to [t͡ɕ]. The early Portuguese and Jesuits such as Francis Xavier used the spelling Paquim; Abraham Ortelius used C. Paquin for his 1572 Theatrum Orbis Terrarum, the first modern atlas; Italian Jesuit Martino Martini used Peking in his 1654 Latin De Bello Tartarico Historia and 1655 Novus Atlas Sinensis, which were quickly translated into English and later used by Joan Blaeu for his 1665 Atlas Maior. Peter Heylyn's Cosmographie changed its spelling from Paquin in the 1652 edition to Peking in the 1658 edition, but both Pekin and Peking were used interchangeably in English until the Chinese Imperial Post adopted Peking as its official transcription in the 1890s. (Note that Peking is not derived from Wade-Giles romanization- see Pei-ching and Peiching.)