The Philippine postal system has a history spanning over 250 years. The first post office was established in the city of Manila in 1767. It was organized under a new postal district of Spain in 1779, encompassing Manila and the entire Philippine archipelago. In 1783, the postal service was organized in the Philippines-overseas mail from the Philippines was conveyed to Europe by Spanish ships via eastbound routes through Mexico. Later on, the postal district was re-established on December 5, 1837. After a year, Manila became known as a leading center of postal services within Asia. Spain joined the Universal Postal Union in 1875, which was announced in the Philippines two years later.