Equinoctal

When the vernal equinoctal sun passed from one zodiacal constellation to the next, an Age ended and a new one began:

It has been argued that this axis is most frequently related to significant solar directions, preferring the equinoctal sunrise (E) and the midwinter solstice (ESE) (Oswald 1997). The South Shields house faces the equinoctal sunrise.

Other sight-lines featured by medicine wheels point to Aldebaran (α Taurus=Tau), Rigel (β Orio- nis=Ori), Fomalhaut (α Pisces Austrinus=PsA), and to the Sun's position on special equinoctal or solstitial dates.

During his last year at Cambridge, Darwin read Alexander von Humboldt's famous Personal Narrative of Travels to the Equinoctal Regions of South America During the Years 1799-1804, a book which awakened in him "a burning zeal […]".

Woe to the European who dared approach the equinoctal line!

Oh, 'twas on the broad Atlantic, 'Mid the equinoctal gales, That a young fellow fell overboard Among the sharks and whales.