The story
On 23 October 1840, during the reign of Abdulmejid I, the Ottoman Ministry of Posts was established. In 1855, the first telegraph service and in 1909 the first telephone service were put into use. In the same year the name of the ministry was changed to Posta Telgraf Telefon ("Posts, Telegraph and Telephone" or PTT for short) a name which was used for 86 years. After the Turkish Republic replaced the Ottoman Empire in 1923, the ministry became a general directorate of the Republic. In 1995, the telephone and other telecommunication services were transferred to newly founded Türk Telekom (which was soon privatized). Accordingly, the directorate was renamed as "Organization of Post and Telegraph" (Turkish: Posta Telgraf Teşkilatı), thus the former acronym PTT is kept.
From Wikipedia’s article on PTT (Turkey), shared under CC BY-SA 4.0.4
