Passage: The control of Tenasserim coast  in the early 18th century was divided between Burma and Siam, with the Burmese controlling down to Tavoy  and the Siamese controlling the rest. Throughout history, both kingdoms had claimed the entire coast--, and control had changed hands several times. The Burmese Pagan Dynasty controlled the entire coast until 1287. Throughout 14th and 16th centuries, Siamese kingdoms  controlled much of the coast, up to just south of present-day Mawlamyaing. In the mid-16th century, the Burmese under Toungoo kings Tabinshwehti and Bayinnaung tried to regain the coast, first failing in 1548, and finally succeeding in 1564 when they conquered all of Siam for the first time. The Siamese revolted in 1584, and under their king Naresuan regained the lower coast by 1593 and the entire coast by 1594. The Burmese retook the upper coast down to Tavoy in 1615 but failed to recover the rest. This arrangement lasted until 1740 . During this period, Mergui  on the Andaman Sea was the primary port of Siam through which its trade with India and the West was conducted.
How many centuries did the Siamese kingdoms control much of the coast? How many kings tried to retake the coast for Burma? How many times was the coast of Tenasserim divided? How many years did it take the Burmese to regain the coast of Tenasserim? How many years passed between the  Burmese under Toungoo kings Tabinshwehti and Bayinnaung trying to regain the coast and failing and when they finally succeeded? How many years passed between the Siamese revolt and the Siamese retaking the entire coast? How many years passed between the failure in 1548 and the success in 1564 of the Burmese in attempting to controlling the Tenasserim coast? How many years was it between the Burmese under Toungoo kings Tabinshwehti and Bayinnaung conquering all of Siam and the Siamese revolting against the rule? How many years was it between the Siamese king Naresuan regaining control of the lower coast and when he was able to retake the entire coast? What geographical location did Siamese control of the coast stop? What year did the Burmese not succeed in counquering all of Siam? When did the Burmese first succeed in gaining control the Tenasserim coast from Siam? Who controlled the lower coast in 1615? what did they fail to retake the rest of?