The cargo of the first Portuguese ships (usually about 4 smaller-sized ships every year) arriving in Japan almost entirely consisted of Chinese goods (silk, porcelain). The Japanese were very much looking forward to acquiring such goods, but had been prohibited from any contacts with the Emperor of China, as a punishment for Wak? pirate raids. The Portuguese (who were called Nanban, lit. Southern Barbarians) therefore found the opportunity to act as intermediaries in Asian trade.

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From the time of the acquisition of Macau in 1557, and their formal recognition as trade partners by the Chinese, the Portuguese Crown started to regulate trade to Japan, by selling to the highest bidder the annual "Capitaincy" to Japan, in effect conferring exclusive trading rights for a single carrack bound for Japan every year. The carracks were very large ships, usually between 1000 and 1500 tons, about double or triple the size of a large galleon or junk.

That trade continued with few interruptions until 1638, when it was prohibited on the ground that the ships were smuggling priests into Japan.

Portuguese trade was progressively more and more challenged by Chinese smugglers on junks, Japanese Red Seal Ships from around 1592 (about ten ships every year), Spanish ships from Manila from around 1600 (about one ship a year), the Dutch from 1609, the English from 1613 (about one ship per year).

The Dutch, who, rather than "Nanban" were called "K?m?" (Jp:??, lit. "Red Hair") by the Japanese, first arrived in Japan in 1600, onbard the Liefde. Their pilot was William Adams , the first Englishman to reach Japan. In 1605, two of the Liefde's crew were sent to Pattani by Tokugawa Ieyasu, to invite Dutch trade to Japan. The head of the Pattani Dutch trading post, Victor Sprinckel, refused on the ground that he was too busy dealing with Portuguese opposition in Southeast Asia. In 1609 however, the Dutch Jacques Specx arrived with two ships in Hirado, and through Adams obtained trading privileges from Ieyasu.

The Dutch also engaged in piracy and naval combat to weaken Portuguese and Spanish shipping in the Pacific, and ultimately became the only westerners to be allowed access to Japan from the small enclave of Dejima after 1638 and for the next two centuries.

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