It was during this early era of colonial conquest that a curious lawsuit was fought out in the Dutch courts. Early in the seventeenth century a Dutch Captain by the name of van Heemskerk, a man who had made himself famous as the head of an expedition which had tried to discover the North Eastern Passage to the Indies and who had spent a winter on the frozen shores of the island of Nova Zembla, had captured a Portuguese ship in the straits of Malacca. You will remember that the Pope had divided the world into two equal shares, one of which had been given to the Spaniards and the other to the Portuguese. The Portuguese quite naturally regarded the water which surrounded their Indian islands as part of their own property and since, for the moment, they were not at war with the United Seven Netherlands, they claimed that the captain of a private Dutch trading company had no right to enter their private domain and steal their ships. And they brought suit. The directors of the Dutch East India Company hired a bright young lawyer, by the name of De Groot or Grotius, to defend their case. He made the astonishing plea that the ocean is free to all comers. Once outside the distance which a cannon ball fired from the land can reach, the sea is or (according to Grotius) ought to be, a free and open highway to all the ships of all nations. It was the first time that this startling doctrine had been publicly pronounced in a court of law. It was opposed by all the other seafaring people. To counteract the effect of Grotius’ famous plea for the “Mare Liberum,” or “Open Sea,” John Selden, the Englishman, wrote his famous treatise upon the “Mare Clausum” or “Closed Sea” which treated of the natural right of a sovereign to regard the seas which surrounded his country as belonging to his territory. I mention this here because the question had not yet been decided and during the last war caused all sorts of difficulties and complications. [Illustration: THE DEATH OF HUDSON] To return to the warfare between Spaniard and Hollander and Englishman, before twenty years were over the most valuable colonies of the Indies and the Cape of Good Hope and Ceylon and those along the coast of China and even Japan were in Protestant hands. In 1621 a West Indian Company was founded which conquered Brazil and in North America built a fortress called Nieuw Amsterdam at the mouth of the river which Henry Hudson had discovered in the year 1609. These new colonies enriched both England and the Dutch Republic to such an extent that they could hire foreign soldiers to do their fighting on land while they devoted themselves to commerce and trade. To them the Protestant revolt meant independence and prosperity. But in many other parts of Europe it meant a succession of horrors compared to which the last war was a mild excursion of kindly Sunday-school boys.