There are 4 names in this directory beginning with the letter L.
A year that has 366 days instead of 365; in a leap year, February has 29 days instead of 28. Leap years fall on any year that either can be evenly divided by 400 or evenly divided by 4 and not evenly divided by 100. For example, the year 2000 is a leap year, but 1900 is not.
The number of days since October 14, 1582, the date of adoption of the Gregorian Calendar. October 15, 1582 is Lilian day 1, October 16, 1582 is Lilian day 2, and so on. This method of time reckoning is named for Aloysius Lilius, an advisor to Pope Gregory XIII. Lilius and his brother constructed the Gregorian calendar.