British explorer, slave-trader, privateer. Led second exp. to sail around the world, 1577-80. Left Plymouth on Dec. 13, 1577, with 6 ships (incl. the Golden Hind). Sailed to Brazil and through the Straits of Magellan. By Panama he pirated Spanish ships and settlements for food and treasures, then crossed the Pacific, sailed by Indonesia, through the Indian Ocean, past Cape of Good Hope, and back to Plymouth. Helped England crush Spanish Armada in 1588 and became the dominant world power.