Long before the westward march of Americans had brought their flag to the Pacific, that ocean was familiar to their mariners. From Cape Horn to Canton and the ports of India, there ploughed the stately merchantmen of Salem, Providence, and Newburyport, exchanging furs and ginseng for teas, silks, the "Canton blue" which is today so cherished a link with the past, and for the lacquer cabinets and carved ivory which give distinction to many a New England home. Meanwhile the sturdy whalers of New Bedford scoured the whole ocean for sperm oil and whalebone, and the incidents of their self-reliant three-year cruises acquainted them with nearly every coral and volcanic isle. Early in the century missionaries also began to brave the languor of these oases of leisure and the appetite of their cannibalistic inhabitants. The interest of the Government was bound to follow its adventurous citizens. In 1820 the United States appointed a consular agent at Honolulu; in the thirties and forties it entered into treaty relations with Siam, Borneo, and China; and owing to circumstances which were by no means accidental it had the honor of persuading Japan to open her ports to the world. As early as 1797 an American vessel chartered by the Dutch had visited Nagasaki. From time to time American sailors had been shipwrecked on the shores of Japan, and the United States had more than once picked up and sought to return Japanese castaways. In 1846 an official expedition under Commodore Biddle was sent to establish relationships with Japan but was unsuccessful. In 1853 Commodore Perry bore a message from the President to the Mikado which demanded--though the demand was couched in courteous language--"friendship, commerce, a supply of coal and provisions, and protection for our shipwrecked people." After a long hesitation the Mikado yielded. Commodore Perry's success was due not solely to the care with which his expedition was equipped for its purpose nor to his diplomatic skill but in part to the fact that other countries were known to be on the very point of forcing an entrance into the seclusion of Japan. Few Americans realize how close, indeed, were the relations established with Japan by the United States. The treaty which Townsend Harris negotiated in 1858 stated that "The President of the United States, at the request of the Japanese Government, will act as a friendly mediator in such matters of difference as may arise between the Government of Japan and any European power." Through his personal efforts Harris may almost be said to have become the chief adviser of the Japanese Government in the perplexities which it encountered on entering international society.