マニラ・ガレオン
After Thomas Cavendish successfully raided the Manila galleon "Santa Ana" off the tip of Baja California in 1587 an attempt was made to explore the coast for a possible town site in California for replenishing and protecting the Manila galleons. Exploration by these Manila galleons met with disaster when the Manila galleon "San Agustin" got too close to the Point Reyes, California coast in a storm in 1595 and was shipwrecked. Subsequently, the Spanish crown decreed that no further exploration or colonization attempts in California would be made with Manila galleons; a years worth of profit from the Philippines could not be risked. One of the greatest bays on the west coast—San Francisco Bay—escaped outside-the-area knowledge until sited on 4 November 1769.