English explorer who was one of the first Europeans to travel to the Canadian Arctic. Bylot was one of a number of explorers who scoured the Arctic for a Northwest Passage to Asia. During the period of 1610-1616, Bylot made a name for himself as a competent navigator and/or commander of four Arctic voyages. During one expedition, he and fellow explorer William Baffin discovered the Lancaster Sound. Although they were unaware of it, the sound was proved some two centuries later to be an entry point for the Northwest Passage.