Who is considered greatest explorer?

There have been many great explorers throughout history, and it is difficult to say definitively who is the greatest. Some of the most famous explorers include:

* Christopher Columbus: Italian explorer who reached the Americas in 1492.

* Vasco da Gama: Portuguese explorer who was the first European to sail around Africa and reach India.

* Ferdinand Magellan: Portuguese explorer who led the first circumnavigation of the world.

* James Cook: British explorer who made three voyages to the Pacific Ocean and mapped much of the coastline of Australia and New Zealand.

* Lewis and Clark: American explorers who led an expedition across the western United States in the early 19th century.

Each of these explorers made significant contributions to our understanding of the world, and it is difficult to say who is the greatest. Ultimately, it is up to each individual to decide who they consider to be the greatest explorer.