Keichō (慶長) was a Japanese era name after Bunroku and before Genna. This period spanned from October 1596 to July 1615. The reigning emperors were Go-Yōzei-tennō (後陽成天皇) and Go-Mizunoo-tennō (後水尾天皇).
Trading pass issued in the name of Ieyasu Tokugawa, dated August 24, 1609 (Keichō 14, 25th day of the 6th month).
Temple bell at Hōkō-ji.
Inscription on bell at Hokoji in Kyoto
Keichō gold coinage: Ōban, Koban, Ichibuban (1601–1695)
The Japanese era name or gengō (元号), is the first of the two elements that identify years in the Japanese era calendar scheme. The second element is a number which indicates the year number within the era, followed by the literal "nen (年)" meaning "year".
Keizō Obuchi, Chief Cabinet Secretary, announces the name of the new era "Heisei" (平成), on 7 January 1989.
Yoshihide Suga, Chief Cabinet Secretary, announces the name of the new era "Reiwa" (令和) at the Prime Minister's Official Residence, on 1 April 2019.
1729 Japanese calendar, which used the Jōkyō calendar procedure, published by Ise Grand Shrine