1909 followed by 1910
1909 (MCMIX) was a common year starting on Friday of the Gregorian calendar and a common year starting on Thursday of the Julian calendar, the 1909th year of the Common Era (CE) and Anno Domini (AD) designations, the 909th  year of the 2nd millennium, the 9th  year of the 20th century, and the  10th  and last year of the 1900s decade. As of the start of 1909, the Gregorian calendar was 13 days ahead of the Julian calendar, which remained in localized use until 1923.