Raleigh sent some ships to explore North America in 1584. On 27 April 1584, Phillip Amadas and Arthur Barlowe sailed to the Eastern coast of North America. They landed on Roanoke Island on 4 July 1584. On the island they met some of the Native American people living there. The tribes they met were the Secotans and the Croatans. Barlowe took two Croatans back to England with him. They were Manteo and the chief, Wanchese. Manteo and Wanchese told Raleigh about Roanoke Island and the politics of the local tribes. Raleigh decided to send more ships back to the Island to learn more. This new expedition (trip) was led by Sir Richard Grenville.