A number of high-profile posts were to follow and Guyana's independence in 1966 brought fresh demands on his time. First he became Attorney-General and then, after a series of ministerial positions during the late '60s and early '70s, he was appointed Secretary-General of the Commonwealth. It has been speculated that his relentless pursuit for just international relations, and for trade based on justice, ultimately hindered his chances of being appointed Secretary-General of the United Nations. But to this day, Sir Shridath presses on. Sir Arthur Lewis IN 1979, Sir Arthur Lewis became a standard-bearer for Black intellectuals. He became the first person from the Caribbean ever to gain a Nobel Prize, winning the award for economics in 1979.