One of the treasures
of Japan, the Kusanagi-no-tsurugi or "Grasscutter
" is a sword believed to have been found by the God of the storms
in the tail of a slayed 8-headed serpent, Yamata no Orochi
. Originally this sword was named Murakumo-no-tsurugi
, meaning "Sword of Gathering Clouds of Heaven."
The sword earned the new name in 110 AD, Kusanagi-no-tsurugi, when Prince Yamato
was ambushed by rebel forces
who tried to kill him by setting fire to the field of grass which surrounded him. When attempting to save himself by cutting the grass down he realised the sword had magical properties
which caused a wind to blow away the fire in the same direction the sword was swung. Thus the sword received a new name, "Kusanagi-no-tsurugi," or "Grass-cutting Sword."
The actual sword allegedly is kept in a Shinto shrine
. Kusanagi-no-tsurugi is one of 3 national treasures
that symbolise Japanese imperial power