was the Al Nahyan family. This family makes up the rulers of Abu Dhabi today.
Pearl trade
Abu Dhabi worked in the pearl business and traded with others. According to a source about pearling, the Persian Gulf was the best location for pearls. Pearl divers dove for one to one-and-a-half minutes, and would have dived up to thirty times per day. There were no oxygen tanks and any other sort of mechanical device was forbidden. The divers had a leather nose clip and leather coverings on their fingers and big toes to protect them while they searched for oysters. The divers were not paid for a day’s work but received a portion of the season’s earnings.
Trucial coast
In the 19th century, as a result of treaties (known as "truces" which gave the coast its name) entered into between Great Britain and the sheikhs of the Gulf shore, Britain became the predominant influence in the area. The main purpose of British interest was to protect the trade route to India from pirates, hence the earlier name for the area, "the "Pirate Coast". After piracy was suppressed other considerations came into play, such as a strategic need of the British to exclude other powers from the region. Following their withdrawal from India in 1947, the British maintained their influence in Abu Dhabi as interest in the oil potential of the Persian Gulf grew.
First oil discoveries
In the 1930s, as the pearl trade declined, interest grew in the oil possibilities of the region. On 5 January 1936, Petroleum Development (Trucial Coast) Ltd (PDTC), an associate company of the Iraq Petroleum Company, entered into a concession agreement with the ruler, Sheikh Shakhbut bin Sultan al Nahyan, to explore for oil. This was followed by a seventy-five-year concession signed in January 1939. However, owing to the desert terrain, inland exploration was fraught with difficulties. In 1953, D'Arcy Exploration Company, the exploration arm of British Petroleum,
