In the 1st century AD, the people from Nusantara archipelago already made large ships over 50 m long and stood out 4–7 m out of the water. They could carry 700-1000 people and 260 ton cargo. These ships known as "kunlun bo" or "k'unlun po" (崑崙舶, lit. "ship of the Kunlun people") by the Chinese and "kolandiaphonta" by the Greeks. It has 4-7 masts and able to sail against the wind due to the usage of tanja sails. These ships reaching as far as Ghana.