Mamiya Rinzō

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In this Japanese name, the family name is Mamiya.
Mamiya Rinzō

Mamiya Rinzō (間宮 林蔵?, 1775 – 13 April 1844) was a Japanese explorer of the late Edo period.

Mamiya was born in 1775 in Tsukuba District, Hitachi Province, in what is now Tsukubamirai, Ibaraki Prefecture. Later in his life he would become an undercover agent for the Tokugawa shogunate. He is best known for his exploration and mapping of Sakhalin (known to the Japanese as 樺太, Karafuto), which resulted in his discovery that Sakhalin was indeed an island and not connected to the Asian continent, although this had already been discovered by Jean-François de La Pérouse in 1787, who charted most of the Strait of Tartary.

In 1785 Japanese explorers reached almost to the Strait of Tartary on the west, Cape Patience on the east and Urup in the Kurils. In 1808 Mamiya sailed up the east coast and Matsuda Denjuro up the west coast. From near Cape Patience Mamiya crossed the mountains to join Matsuda. The next year Mamiya sailed into the mouth of the Amur River and reached a Chinese trading post. In 1852 Mamiya's maps were published in Europe by Philipp Franz von Siebold.

Although Japan believed that Mamiya had no child, it was announced in 2002 that there was a daughter of him and an Ainu woman and her descendants remained alive in Hokkaido.[1]

See also[edit]


  1. ^ 間宮林蔵の子孫が一堂に 茨城県・伊奈町. 47 News (in Japanese). October 25, 2003. Retrieved April 19, 2011. 
  • Derek Hayes, Historical Atlas of the North Pacific, 2001