Age of Discovery: The historical period from the late 15th century to the 17th century when European explorers sailed and discovered new lands.
Treaty of Tordesillas: An agreement between Spain and Portugal in 1494 that divided newly discovered lands outside Europe along a meridian line, granting different territories to each country.
Northwest Passage: A sought-after water route through North America that would connect the Atlantic and Pacific Oceans, prompting exploration efforts by European nations.