????????? ???? 1901 ( MCMI ) ??? ????????????? ?????????? a ????????? ?????? ????? ???????? ?????  and a common year starting on Monday of the Julian calendar , the 1901 ?? year of the Common Era (CE) and Anno Domini (AD) designations, 2 ?? ??????????? ??? 901 ?? ???, 20 ?? ????? ??? 1 ?? ???, ?? 1900???? ??????? 2 ?? ??? between 1583 and 1929 and with Julian Value: 1901 is 13 calendar days difference, which continued to be used until the complete conversion of the Gregorian calendar was entirely done in 1929 .