Equinoxes
A Dictionary of Law · Henry Campbell Black · 1891
A Dictionary of Law
Thetwo periods of the year (vernal equinox about Mareh 21st, and autumnal equinox about September 22d) when the time from the rising of the sun to its setting is equal to the time from its seting to its rising, See Dig. 48, 13, 1, 8.