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
The Valentine his collection of art and artifacts, the 1812 John Wickham House and a $50,000 endowment. Their collection of art and artifacts was the foundation of the exhibitions, when the Valentine Museum opened in 1898. Part of the original intent of the founding of the museum was to display these archeological artifacts in perpetuity, after the family was embarrassed by an archeological hoax in North Carolina. When it opened, the Valentine Museum was the first private museum in the City of Richmond Mann S. Valentine II's brother Edward Virginius Valentine also had an interest in history and was a well-known sculptor.