From which country was the explorer who discovered the island of Manhattan?
Schreierstoren The Schreierstoren (English incorrectly translated as: Weeper's Tower), originally part of the medieval city wall of Amsterdam, the Netherlands, was built in the 15th century. It was the location from which Henry Hudson set sail on his journey to Northern America. This expedition would lead to the discovery of the island of Manhattan among others. It was built as a defense tower in 1487. It is currently a café and nautical bookstore. The old name was 'Schreyhoeckstoren' meaning in old Dutch the sharp angle of the tower with the once connected citywalls. Later they started calling it in short the Schreierstoren.
Leonardo's world map Generally known as Leonardo's world map, it is a map drawn in the "octant projection" in approximately 1514, which has been related with the first uses of the name America. The map shows all the information that Amerigo Vespucci brought from his travels, reported in 1503 and 1505. Additionally, the map shows the Arctic as an ocean and Antarctica as a continent of about the correct size, a cartographic accuracy not replicated for about the following three centuries.