“The determination of the date of Easter is governed by a computation based on the vernal equinox and the phase of the moon.”

“The tropical year when the earth in its revolution passes from one equinox or tropic to the same again.”

“Well, I use the Autumn equinox as a time to say goodbye to Summer and to welcome the fall.”

“The lengths of the hours were equal around the equinoxes but the rest of the time they could vary considerably.”

“During the spring and fall equinoxes, the Sun also passes through this plane.”

“He explained eclipses, solstices and equinoxes, announced the sphericity of the earth and its diurnal revolution on its axis.”