The Board of Longitude Archive documents a remarkable 18th Century government-sponsored competition to solve the critical problem of safe navigation at sea. This attracted hundreds of submissions from the whole cross-section of society - from the greatest scientific minds of the day through to amateurs and eccentrics. Some proposals were carefully considered and tested, others were quickly labelled “impractical”. All, however, were carefully filed and provide a fascinating insight into Georgian society and thought. The Archive charts the development of science and technology through the century, captures the concerns and politics of the time, and charts the expansion of the British Empire through the great voyages of discovery, acquisition and trade. It contains a wide range of material from formal minutes to correspondence, maps and charts. It also has much to tell us of the natural world 200-250 years ago, recording celestial observations, occurrences of storms, and extent of ice sheets. This vast scope and variety of material makes the Archive a wonderful resource for research and education in many spheres – from the history of science through to social studies and climatology. We are partnered with a major AHRC-funded research project on the history of the Board, and we will be tying their research output to our digitised content. The Longitude problem is already part of the undergraduate tripos for Cambridge history of science students, but the material has a much broader potential for use in schools and universities. The high public profile of the Longitude story will ensure public interest, but there is much more to discover - including valuable resources for those undertaking family history or local studies. We will build a substantial digital collection (comprising some 65,000 pages of content), consolidating resources held at Cambridge University Library and the National Maritime Museum, and generating detailed metadata and contextual resources to place the material within a rich intellectual framework. Resources will be created to link the collection to the school curriculum and incorporate it within an exciting programme of exhibitions and public engagement being undertaken by the Museum.