Kiyomizu-dera was founded in the early Heian period. The temple dates back to 798, and its present buildings were constructed in 1633, during a restoration ordered by the Tokugawa Iemitsu. There is not a single nail used in the entire structure. It takes its name from the waterfall within the complex, which runs off the nearby hills. Kiyomizu means clear water, or pure water. The temple was originally affiliated with the old and influential Hoss? sect dating from Nara times. However, in 1965 it severed that affiliation, and its present custodians call themselves members of the Kitahoss? sect.