Waka is a type of poetry in classical Japanese literature. Although waka in modern Japanese is written as 和歌, in the past it was also written as 倭歌, and a variant name is yamato-uta.
The Kokin Wakashū is an early (c. 900) anthology of waka poetry which fixed the form of Japanese poetry.
"Kimigayo" is the national anthem of Japan. The lyrics are from a waka poem written by an unnamed author in the Heian period, making the lyrics of "Kimigayo" the oldest lyrics of any national anthem.
Waka (poetry)
…Iroha – Old Japanese syllabary in 7-5 metre poem form Kimigayo - Japanese national anthem based on a waka of early 10th century Brower, Robert H., and Earl Miner, Japanese Court Poetry, Stanford University Press…
Sazare-ishi pebbles are believed to grow into boulders in some legends (at Shimogamo Shrine in Kyoto)
Franz Eckert's notes, presented to the Emperor Meiji in 1880 (cover design by Curt Netto)
The Act on National Flag and Anthem (Japan) as it appears in the Official Gazette on 15 August 1999
A photo taken on 6 November 2007, as "Kimigayo" was being played before a volleyball tournament in Ōsaka