Assertion: leap year | /r/HasProperty | introduced by roman emperor julius caesar
Facets:
value: to replace a complicated calendar
type: PURPOSE
value: in 45 bce
type: TEMPORAL
Source sentences:
text: Leap Year was first introduced by Roman Emperor Julius Caesar over 2,000 years ago.
text: Leap year was introduced by Roman emperor Julius Caesar in 45 BCE to replace a complicated calendar that relied on equinoxes and moon positions to determine how long months would be.