Persian Gulf as "The Northwestern limit of Gulf of Oman". This limit is defined as "A line joining Ràs Limah (25°57'N) on the coast of Arabia and Ràs al Kuh (25°48'N) on the coast of Iran (Persia)". The gulf is connected to Indian Ocean through Strait of Hormuz. Writing the water balance budget for the Persian Gulf, the inputs are river discharges from Iran and Iraq (estimated to be 2000 cubic meters per second), as well as precipitation over the sea which is around 180mm/year in Qeshm Island. The evaporation of the sea is high, so that after considering river discharge and
Piracy in the Persian Gulf bin Muhammad Al Qasimi argues in his book "The Myth of Piracy in the Gulf" that the allegations of piracy were simply excuses used by the British to impose imperialism. Piratical activities were common in the Persian Gulf from the late 18th century to the mid 19th century, particularly in the area known as the "Pirate Coast" which spanned from modern-day Qatar to Oman. Piracy was alleviated from 1820 with the signing of the General Maritime Treaty, cemented in 1853 by the Treaty of Maritime Peace in Perpetuity, after which the Pirate Coast began to be known by the British