1913 ( MCMXIII ) was a common year starting on Wednesday of the Gregorian calendar and a common year starting on Tuesday of the Julian calendar , the 1913th year of the Common Era (CE) and Anno Domini (AD) designations, the 913th year of the 2nd millennium , the 13th year of the 20th century , and the 4th year of the 1910s decade. As of the start of 1913, the Gregorian calendar was 13 days ahead of the Julian calendar, which remained in localized use until 1923.