Assertion: leap year's day | /r/HasProperty | year
Facets:
Source sentences:
text: The Romans treated leap day as a second sixth day before the Kalends of March, in Latin ante diem bis sextum Kalendas Martias, This bis sextum was translated as 'bissextile': the 'bissextile day' is the leap day and a 'bissextile year' is a year which includes a leap day.