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New Calendar System. Bulgaria officially adopted the gregorian calendar on 1 april 1916, which became 14 april 1916. Web researchers at johns hopkins university in maryland say they have a better way to mark time:
Web researchers at johns hopkins university in maryland say they have a better way to mark time: Bulgaria officially adopted the gregorian calendar on 1 april 1916, which became 14 april 1916. A new calendar in which every year.
Bulgaria officially adopted the gregorian calendar on 1 april 1916, which became 14 april 1916. A new calendar in which every year. Bulgaria officially adopted the gregorian calendar on 1 april 1916, which became 14 april 1916. Web researchers at johns hopkins university in maryland say they have a better way to mark time: