Relatively recently, among the unusual holidays that have a national background, but gained popularity in different countries, a new one has appeared, called the Day of the Ninja.
It is celebrated annually on December 5, and according to one version, it was timed to coincide with the release of the feature film The Last Samurai in 2003. In the film, there was a scene of a battle between a ninja detachment and samurai. At least, this is how the version of the appearance of the holiday and the determination of its date in the Internet space currently appears, thanks to which the holiday, in fact, gained popularity and distribution. At the origins of its appearance is the parody site "Ninja Burger".
The national prehistory of the holiday is connected with one of the cultural phenomena in the history of Japan. We are talking about "shinobi-no-mono", better known as "ninjutsu". The literal translation of the term sounds like "hide, hide, endure." People who learned this art were called shinobi or ninja.