Keiō

was a after "Genji" and before "Meiji". The period started in April 1865 and ended in September 1868. During this time, the emperors were and . 
The "nengō" "Keiō" means "Joyous Concord" 
Events of the "Keiō" era.
In 1868, the emperor moved his Imperial court to Tokyo; and Edo castle became an Imperial palace. In this way, the capital of Japan moved from Kyoto to Tokyo.
Keio University was named after this era. It is the oldest existing institution of higher learning in Japan.