The theme of this year's first issue is calendar adventures. A hundred years ago, at the very beginning of 1918, innovations occurred in Russia, which, it would seem, had nothing to do with the revolution. The Bolsheviks who came to power, in addition to radical socio-economic and political transformations, unexpectedly for many, implemented a number of decisions regarding the daily life of citizens. As a result, the country, by the will of the then government, not only switched to a significantly simplified alphabet, but, in addition, began to live according to a new, Gregorian calendar. The practical reason was obvious: by 1918, Russia remained one of the few European countries that lived according to the archaic, as it seemed to many then, Julian calendar.