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Doi Toshitsura (土井 利位, June 15, 1789 – July 31, 1848) was a Japanese daimyō of the Edo period, who ruled the Koga Domain. He served as a rōjū for Tokugawa Ienari during the Tokugawa shogunate .
Feb 10, 2016 · In 1832, Doi Toshitsura, the feudal lord of what is now Ibaraki Prefecture, publicly released his findings of 20 years of researching snow flakes and crystals. The 86 different crystalline shapes were recorded in a book entitled Sekkazusetsu (“illustrations of snow flowers”).
Doi Toshitsura, the author of Sekka zusetsu, put down the Oshio Heihachiro Rebellion in 1837 while serving as the Guardian of Osaka Castle, but one of the causes of the rebellion was the famine caused by extremely cold weather.
Sekka Zusetsu (雪華図説) is a figure collection written by Doi Toshitsura, the fourth daimyō of Koga Domain in 1832. Overview. Koga Domain was located at the center of the Kantō Plain. Due to heavy snowfall, the Koga Domain was a good place to observe snowflakes.
His name was Doi Toshitsura (1789-1848), the lord of the Koga Domain (in present-day Ibaraki Prefecture). He was the first person in Japan to study snow crystals under a microscope, in research that stretched over two decades.
Doi Toshitsura (土井 利位?, June 15, 1789 – July 31, 1848) was a Japanese daimyō of the Edo period, who ruled the Koga Domain. He served as a rōjū for Tokugawa Ienari during the Tokugawa shogunate.
Who was Doi Toshitsura? Doi Toshitsura was a Japanese daimyo of the Edo period, who ruled the Koga Domain. He served as a rōjū in the Tokugawa shogunate.
