Kōshintō  is a type of stone monument which originated with the Taoist Kōshin faith. They were first introduced  to Japan by monks of the  Tendai Buddhist sect in the late 10th century, but it was not until the early Edo period that they became the object of a popular faith. There are probably about 500 of them in Tokyo. They can be found in shrines, and temples, though many can be found by the roadside. They are often found as Massha in shrines and are often dedicated to Saruta-hiko-kami (115). The meaning of the first character of this kami's name, Saru 猿, means "monkey," and the three wise monkeys are often carved on the Kōshintō The oldest surviving one which can be reliably dated is that in the Jissoji temple in Kawaguchi-shi in Saitama-ken, it dates to 1471.