How many expeditions did Shackleton lead?

Ernest Shackleton led three major Antarctic expeditions: the British Antarctic Expedition (1907-1909), the Imperial Trans-Antarctic Expedition (1914-1917), and the Shackleton-Rowett Expedition (1921-1922). The most famous of these is the Imperial Trans-Antarctic Expedition, during which his ship, the Endurance, became trapped in ice. Shackleton’s leadership during these challenging journeys has become legendary in the realm of exploration.