Vasco da Gama was a Portuguese explorer born around 1460 who led the first European expedition to reach India by sea in 1498. His expedition of 150 men was commissioned by King Manuel I of Portugal to find an ocean route to Asia, as the traditional land routes were blocked by the Ottoman Empire. Da Gama sailed around the Cape of Good Hope and along the east coast of Africa before landing in Calicut and Goa, India. Only 70 of the original 150 crew members survived the difficult voyage, which faced hardships like scurvy outbreaks and storms. Da Gama established trade relations between Portugal and India, finding the first all-water route that connected Europe and Asia by sea.