Lua error in Module:Unicode_data at line 293: attempt to index local 'data_module' (a boolean value). was a Lua error in Module:Unicode_data at line 293: attempt to index local 'data_module' (a boolean value). after Kaei and before Man'en. This period started in November 1854 and ended in March 1860. During this time, the emperor was Lua error in Module:Unicode_data at line 293: attempt to index local 'data_module' (a boolean value)..
The nengō Ansei means "tranquil government".
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