The Longitude Act of 1714 and the Last Parliament of Queen Anne

Abstract

Historical literature on the Longitude Act of 1714 has postulated a direct monocausal connection between a British naval disaster off the Scilly Isles in 1707 and the parliamentary enactment seven years later. This article proposes, and provides evidence for, a multicausal interpretation encompassing political, economic, and scientific factors. It argues that the Longitude Act, whose tercentenary was marked in July 2014, was the outcome of general circumstances, the legislation being concurrent with other statutory measures designed to protect shipping at a time of expanding commercial opportunities. The article re‐evaluates the parliamentary process and timetable and considers the role of MPs, men of science and journalists in promoting and seeing through parliament this important statute. It notes that the events in June 1714 mark one of the first instances of expert scientific opinion being heard at parliamentary level. It also evidences an earlier bill in 1712 promoted to protect a time movement invention designed to help in the discovery of the longitude, one of the most controversial subjects in the 18th century.