This manuscript map of Java and the tip of northern Australia is a copy of an earlier work by the Malaysian-Portuguese cartographer Emanuel Godinho de Eredia (1563-1623). In the 16th century, Portugal sent several expeditions to explore the islands south of Malaysia; it is possible that they gained some knowledge about the geography of Australia from these missions. Some scholars have speculated that the Malays had a knowledge of Australia, which Eredia somehow absorbed. The first documented European sighting of Australia was by the Dutch navigator Willem Janszoon, in 1606.