Original: In March 1617 , Rolfe and Pocahontas boarded a ship to return to Virginia , however , the ship had only gone as far as Gravesend on the River Thames when Pocahontas became gravely ill/O. .
Simplified: In March 1617 , John Rolfe and Pocahontas got on a ship to return to Virginia , but Pocahontas became very sick and died .