Assertion: vernal equinox | /r/Synonym | first day of spring
Facets:
value: (around) march
type: TEMPORAL
Source sentences:
text: Vernal Equinox is also known as the first day of Spring - or (around) March 21.
text: The spring equinox (otherwise known as the “first day of spring”) is a turning point in the seasons when the sun reaches its zenith over the celestial equator.
text: The vernal equinox is considered the first day of spring: finally, the day and night are of equal length.