Back 2000 years ago, if you were born under the sign of Taurus, then by golly the sun was in the constellation Taurus. And I'll bet those people were stubborn. But the earth's orbit has rotated since then. This slow rotation is known as the precession of the equinoxes. Astrologers neglected to adjust for this, down through the ages.
Astrologers are now aware of the precession.
But astrology is so scientific. Now there is a Ford automobile called a Taurus. A stubborn car, I presume. She went on to say that I didn't know anything about Taures. She got me there.