My username is derived from Ansei (安政), which was a Japanese era name (年号, nengō, lit. "year name") during the years from 1854 through 1860. The name was created to signal the beginning of a peaceful period, but it turned out to be a time of great change.
The nengō Ansei means "peaceful government" (庶民安政、然後君子安位矣).
Notes and sandboxes