Anglo-Portuguese Treaty of 1373 Anglo-Portuguese Treaty of 1373 The Anglo-Portuguese Treaty of 1373 was signed on 16 June 1373 between King Edward III of England and King Ferdinand and Queen Eleanor of Portugal. It established a treaty of "perpetual friendships, unions [and] alliances" between the two seafaring nations. It is the oldest active treaty in the world. It was confirmed "with my usual flourish" by John de Banketre, Clerk. It was reinforced throughout history, including in 1386, 1643, 1654, 1660, 1661, 1703, 1815 and by a secret declaration in 1899. It was recognized in the Treaties of Arbitration in the 20th century between Britain
Treaty of friendship and alliance between the Government of Mongolia and Tibet reign of the 13th Dalai Lama. There are data that the treaty signed by Russia with Mongolia in 1912 (i.e. before signing the treaty with Tibet) meant international recognition of Mongolia as a state which was not required a sanction from a third side; as a result, the treaty between Tibet and Mongolia is considered as de jure recognition of Tibet as a state. In any case, the independence of both Tibet and Mongolia continued not to be recognized by most other powers, which continued to recognize at least the suzerainty of the Republic of China over these areas. Even