Longitude by Dava Sobel Map – John Harrison & Marine Chronometer History Map

Explore the epic history of navigation with our detailed Longitude by Dava Sobel map. Inspired by the true story of the 18th-century race to solve the world's greatest navigational puzzle, this map highlights the key locations, sea routes, and historical milestones behind John Harrison’s revolutionary marine chronometer. From the British Parliament's Longitude Act of 1714 to the transatlantic voyages that tested Harrison's life-saving clocks, this piece brings the struggle between astronomy and horology to life.

Perfect for history buffs, cartography enthusiasts, and admirers of Dava Sobel's classic narrative, this map serves as both an educational resource and striking wall art. Track the transatlantic routes of ships using early timekeeping at sea, trace Greenwich as the prime meridian anchor, and appreciate the craftsmanship of John Harrison's triumph over ocean navigation challenges.