Diogo Cão was a Portuguese explorer active in the late 15th century, known for his voyages along the west coast of Africa. He was one of the first Europeans to explore this region, paving the way for future exploration and trade. Cão's expeditions were significant in expanding European knowledge of Africa and its coastal geography. During his journeys, Cão established contact with various African kingdoms and marked his route with stone pillars called padroes. His explorations contributed to the Age of Discovery, a period characterized by European exploration and maritime expansion, which ultimately led to increased trade and cultural exchanges between Europe and Africa.