Year a leap year there are 366 days. A leap year occurs every fourth year, or leap year, during which a leap day is intercalated into the month of February. The name "Leap Day" is applied to the added day. The Revised Julian calendar, proposed in 1923 and used in some Eastern Orthodox Churches, has 218 leap years every 900 years, for the average (mean) year length of days, close to the length of the mean tropical year, days (relative error of 9·10). In the year 2800 CE, the Gregorian and Revised Julian calendars will begin to differ by one calendar
HMS Valentine (L69) Second Battle of Heligoland Bight. An attempt by "Valentine" and the destroyer to carry out a torpedo attack on German cruisers proved unsuccessful. In 1919, "Valentine" was deployed to the Baltic Sea as part of the British intervention in the Russian Civil War, which helped to ensure the independence of the Baltic states. Post-war, "Valentine" formed part of the 2nd Destroyer Flotilla, first as part of the Atlantic Fleet and later as part of the Mediterranean Fleet. In the 1920s, "Valentine"s twin torpedo tubes were replaced by triple tubes, giving a torpedo armament of six 21 inch torpedoes, and the