THE EXPANSION OF EUROPE 395 years it culminated in the tragedy of Ainboyna (1623) where the infuriated Dutch murdered ten Englishmen and tortured several others. Though this ' massacre' resulted in driving the English out of the Archipelago, it proved a blessing in disguise, for it gave them India. The quairel with the Dutch nearer home led to the passing of the important Navi- gation Act of 1651, which provided that all goods imported into England must be carried either in English bottoms or in the ships of the country which produced them. The Dutch tried to defy this law and presumptuously sailed up the Thames-with brooms attached to their mast-heads to signify their determination to sweep the English from the seas. Bat they were defeated all the same, and had -to accept the Navigation Act confirmed by the Treaty of Westminster, 1654. Another aspect of the contemporary scene which had mo- mentous results may also be referred to here. The Spanish and Portuguese successes in South America had aroused the greed of the English, the Dutch, and the French, leading to international conflicts, organised piracy, and the foundation of colonies in the remaining parts of that continent. Emi- gration from Europe was further stimulated by the religious policies of monarchs during the Reformation period; the victims of persecution sought refuge in exile in the New World. The stream thus started was fed by a variety of causes all of which contributed to the permanent occupation of America by the Europeans. The details of the process must be read elsewhere. For our present purpose a record of the result alone should suffice. The Portuguese had occupied Brazil and the Spaniards Mexico and Peru. Out of this nucleus grew up the Republics of South America. The Dutch were among the earliest in the race for North America, but their main objectives being