The postal history of Turkey and its predecessor state, the Ottoman Empire, dates to the 18th century when foreign countries maintained courier services through their consular offices in the Empire. Although delayed in the development of its own postal service, in 1863 the Ottoman Empire became the second independent country in Asia (after Russia) to issue adhesive postage stamps, and in 1875, it became a founding member of the General Postal Union, soon to become the Universal Postal Union. The Ottoman Empire became the Republic of Turkey in 1923, and in the following years, its postal service became more modernized and efficient and its postage stamps expertly designed and manufactured.