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The Russian Constitution of 1906 is adopted (on April 23 by the Julian calendar).
Related Wikipedia articles
Russian Constitution of 1906
Reorganization of the Imperial Russian government following the 1905 revolution
The Russian Constitution of 1906 refers to a major revision of the 1832 Fundamental Laws of the Russian Empire, which transformed the formerly absolutist state into one in which the emperor agreed for the first time to share his autocratic power with a parliament. It was enacted…Source: Wikipedia (CC BY-SA)
Julian calendar
Calendar introduced by Julius Caesar
The Julian calendar is a solar calendar of 365 days in every year with an additional leap day every fourth year. The Julian calendar is still used as a religious calendar in parts of the Eastern Orthodox Church and in parts of Oriental Orthodoxy as well as by the Amazigh people.…Source: Wikipedia (CC BY-SA)