Adoption of the Gregorian calendar for secular use occurred in Eastern Orthodox countries as late as the 20th century and some religious groups in some of these countries still use the "old style" (O.S.) Julian calendar for ecclesiastical purposes. The Kingdom of Bulgaria changed from the Julian to the Gregorian calendar during the First World War on 31 March 1916, where the next day was 14 April 1916. The Ottoman Empire's Rumi calendar, used for fiscal purposes, was realigned from a Julian to a Gregorian starting on 16 February/ 1 March 1917. The beginning of the year was reset to 1 January starting in 1918.
Chaula (month) Chaula (month) Chaulā (Nepal Bhasa: चौला) is the sixth month in the Nepal Era calendar, the national lunar calendar of Nepal. The month coincides with Chaitra (चैत्र) in the Hindu lunar calendar and April in the Gregorian calendar. Chaulā begins with the new moon and the full moon falls on the 15th of the lunar month. The month is divided into the bright and dark fortnights which are known as Chaulā Thaw (चौला थ्व) and Chaulā Gā (चौला गा) respectively. One of the major events that occur during this month is Jana Baha Dyah Jatra, the chariot festival of the