This strait, believed to separate northwestern America from northeastern Asia, was related to the centuries-long quest to find a Northwest Passage connecting the Atlantic Ocean to the Pacific. Appearing on maps beginning in the mid- to late-fourteenth century, the rumor of this strait and a Northwest Passage in general inspired many voyages of discovery, including those of John Cabot, Sir Francis Drake, Gaspar Corte-Real, Jacques Cartier, and Sir Humphrey Gilbert.
The term Anian itself comes from Marco Polo’s thirteenth-century accounts of his travels. Polo used the term to refer to the Gulf of Tonkin, but cartographers thought it could refer to this supposed strait between Asia and North America. The Strait of Anian, so named, first appeared in a 1562 map by Giacomo Gastaldi, and was later adopted by Bolognini Zaltieri and Gerard Mercator.