Original Sighting in 1846, at Higo in Kumamoto prefecture (Kawaraban 4/1846)

4/8/2020) Twitter posting by Japanese Ministry
of Health, Labor and Welfare
"Shiranai uchi ni hiromechau kara"
(Because it spreads before we know it)

Mizuki Shigeru (1984)

posting in Tokyo Shinbun (5/21/2020)