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Nagamasa Kuroda dedicated the Ishidorii in 1618. It is 9m high,
and the pillar is diameter of 3.6m, and central space between pillars
is 3.8m. The Ishidorii is one of the best three stone-made torii
gates in Japan, but it is the biggest among the stone-made
torii gates in Edo period. Other two torii gates are
located in Yasaka Shrine in Kyoto, and Hachimangu Shrine in Kamakura.
Emperor
Gomizunoo wrote "Tosho-daigongen" (Divine designation
of Ieyasu Tokugawa) on the frame of 6ft x 3ft. That frame is put
on the upper side of the Ishidorii. Main material of the Ishidorii
was the granite, which was produced in Fukuoka prefecture. The Ishidorii
was constructed by 15 pieces of stone material. Each material is
connected by axle, and crossbars have caves in order to be lightweight.
It also has an anti-earthquake function. In fact, joint of the crossbars
was slipped widely by the earthquake in 1949, but it shifted back
to the original place by aftershock.
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