The Japanese in Hawaii (simply Japanese or “Local Japanese”, rarely Kepanī) are the second largest ethnic group in Hawaii. At their height in 1920, they constituted 43% of Hawaii's population. They now number about 16.7% of the islands' population, according to the 2000 U.S. Census. The U.S. Census categorizes mixed-race individuals separately, so the proportion of people with some Japanese ancestry is likely much larger.
History
Contact before 1778
Final voyage of the Inawaka-maru
The first known arrival of Japanese to the Kingdom of Hawaii after Hawaiian contact with James Cook came on May 5, 1806, involving survivors of the ill-fated ship Inawaka-maru who had been adrift aboard their disabled ship for more than seventy days.
The Inawaka-maru, a small cargo ship built in 1798 in Osaka, was owned by Mansuke Motoya. The Inawaka-maru started its final voyage from Hiroshima to Edo (modern Tokyo) on November 7, 1805. The ship had been chartered by the Kikkawa clan to deliver mats, horse feed, and two passengers, Kikkawa officials. Her crew consisted of Captain Niinaya Ginzo, Master Ichiko Sadagoro, Sailors Hirahara Zenmatsu, Akazaki Matsujiro, Yumori Kasoji, and Wasazo, a total of eight aboard. The Inawaka-maru had to turn back, and restarted her journey on November 27. She arrived in Edo on December 21, started back to her home port stopping in Kanagawa, Uraga, and Shimoda, and left on her final leg – from Shimoda across the Enshū Sea – on January 6, 1806.
The Inawaka-maru was caught by a snowstorm that turned to rain and winds battered the ship eastward into the Pacific Ocean. On January 7 the crew cut down the mast because of the strong winds. On January 11 two rocky islands were sighted but no attempt was made toward them. These would be the last land before the Hawaiian Islands. On January 20 the water stores were empty, but the men collected rain water to survive. On February 28 the rice provisions ran out. On March 15 a flying fish landed in the ship and the men fished to sustain themselves. On March 20 the Tabour, an American ship Captained by Cornelius Sole, rescued the men of the Inawaka-maru. He found them begging for food by gesturing to their stomachs, mouths and bowing, found the galley empty, and understood their ordeal. He had the possessions of the survivors brought aboard his ship and salvaged parts and items aboard Inawaka-maru. Captain Sole had the survivors fed, over a span of five days, small portions to a progression to three normal meals a day, the remedy for starvation. On May 5, 1806, the Tabour docked in Oahu, Hawaii. Captain Sole left the eight Japanese in the care of King Kamehameha I. Captain Sole also left the anchor of the Inawaka-maru, 40 axes, and other items as payment for the Kingdom's hospitality.
The King delegated the responsibility for the Japanese to Kalanimoku who had 50 men construct a house on May 6 for the Japanese. It took four days to build and a cook and two guards assigned to the house, which attracted crowds to these men of a different ethnicity. On August 17 the Japanese left Hawaii aboard the Perseverance to Macau on October 17. From there they took a Chinese ship to Jakarta on December 25. In Jakarta they fell ill and five died there or on the voyage to Nagasaki where they arrived on June 17, 1807, where another died. At the time of the Sakoku it was illegal to leave Japan and the remaining two survivors were jailed and interrogated. One committed suicide and the remaining survivor Hirahara Zenmatsu eventually made it home November 29, 1807 but was summoned by Asano Narikata, The Daimyō of Hiroshima, to recount his odyssey of an experience titled Iban Hyoryu Kikokuroku Zenmatsu. Hirahara Zenmatsu died six months later.