Penny Post much needed reforms in the current postal system. On 10 January 1840, the Uniform Penny Post was established throughout the UK, facilitating the safe, speedy and cheap conveyance of letters, and from 6 May could be prepaid with the first postage stamp, known as the Penny Black. Elihu Burritt proposed that a fixed rate of one penny be established for all mail throughout the entire British Empire as a means of facilitating international interaction and international unity. This was known as the Ocean Penny Post. On Christmas Day, 1898, the Imperial Penny Post extended the rate throughout the British Empire
Penny Post General Post Office. In 1765, Parliament authorized the creation of Penny Posts in any town or city of the kingdoms of Great Britain and Ireland. The single postage rate of one penny was charged within the area, calculated by weight. By the beginning of the 19th century there were many of these, identifiable on covers, with markings such as "PP", "Py Post", or "Penny Post" along with the name of the town. The early penny post system in Edinburgh, founded in 1773/4 by Peter Williamson, known as "Indian Peter," usefully combined it with one of the world's first street directories.