William Bradley, English lieutenant and cartographer (born 1757)

William Bradley was a British naval officer and cartographer who was one of the officers who participated in the First Fleet to Australia. During this expedition, Bradley undertook extensive surveys and became one of the first of the settlers to establish relations with the aborigines, with whom he struck up a dialogue and whose customs and nature he studied extensively. He later however fell out with his aboriginal contacts and instead undertook a mission to gather food which ended with an eleven-month stay on Norfolk Island after a shipwreck.

March 13 is the 72nd day of the year in the Gregorian calendar; 293 days remain until the end of the year.