On 10 August 1519, five ships under Portuguese explorer Ferdinand Magellan's command left Seville and descended the Guadalquivir River to Sanlúcar de Barrameda, at the mouth of the river. After further preparation 5 weeks later the ships set sail for the very first circumnavigation of the earth.
On August 1, 1785, French Navy officer Jean-François de La Pérouse with 2 ships, the Astrolabe and the Boussole, and 200 men left Brest to lead an expedition around the world. The objectives of the journey were to complete the Pacific discoveries of James Cook (whom Lapérouse greatly admired), correct and complete maps of the area, establish trade contacts, open new maritime routes and enrich French science and scientific collections.
On July 27, 1740, French natural scientist Jeanne Baret was born. She was probably the first woman to circumnavigate the globe, but with certainty she was the first woman who achieved this disguised as a man.
On May 14, 1804, American explorers Meriwether Lewis and William Clark departed for the first American expedition to cross what is now the western portion of the United States, departing from St. Louis on the Mississippi River making their way westward through the continental divide to the Pacific coast.
On April 28, 1947, Norwegian ethnographer and adventurer Thor Heyerdahl and five crew mates set out from Peru on the self-built raft Kon-Tiki to prove that Peruvian natives could have settled Polynesia. With Kon-Tiki, Heyerdahl sailed 8,000 km across the Pacific Ocean in a self-built raft from South America to the Tuamotu Islands to demonstrate that ancient people could have made long sea voyages, creating contacts between apparently separate culture