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
1973 Boundary Treaty between Uruguay and Argentina boundary led to the Martín García canal dispute and the Uruguay River pulp mill dispute. 1973 Boundary Treaty between Uruguay and Argentina The Treaty between Uruguay and Argentina concerning the Rio de la Plata and the Corresponding Maritime Boundary was signed in Montevideo on 19 November 1973 by Dr. Juan Carlos Blanco Estradé, Minister for Foreign Affairs of Uruguay and Mr. Alberto J. Vignes, Minister for Foreign Affairs and Worship of Argentina. The treaty provides the geographic coordinates for the boundary points in the Rio de la Plata, affords the status of Martín García Island and other islands in the