Edited sentence: Iran also argues that Britain at least on one occasion in 1886 formally indicated acknowledgment of Persian sovereignty, through a map presented to the Shah by the British government.Iran argues that the local Qasimi rulers during a crucial part of the 19th century where actually based on the Iranian, not the Arab, coast, and had thus become Persian subjects.Iran's claims also stand in an earlier tradition of informally claiming sovereignty over the whole of the Persian Gulf waters and islands.The UAE argue that the islands were under the control of Qasimi sheikhs throughout the 19th century, whose rights were then inherited by the UAE after 1971