Scientific ocean voyages

First ocean voyage exclusively for science. Prior, voyages were taken for exploration, settlement or trade, with science as a side-effect. Halley's voyage measured magnetic declinations around the world, prepared first map of the world showing isodeclination, and accurate lat/long for ports.
 Edmond Halley England 1698 Scientific ocean voyages

First ocean voyage exclusively for science. Prior, voyages were taken for exploration, settlement or trade, with science as a side-effect. Halley's voyage measured magnetic declinations around the world, prepared first map of the world showing isodeclination, and accurate lat/long for ports.