In his modern classic, Vermeer's Hat, Timothy Brook says simply that 17th-century Netherlands raised the curtain on the global world – which is our world. The Dutch bought and sold wherever they could find anything to trade. They wrote the fundamentals of international law to suit their needs. They mapped the globe and the heavens. Their way of life became multicultural. When Vermeer painted a geographer in 1669, he dressed him in a Japanese kimono and gave him a globe depicting the Indian Ocean.