One friend of my fb sent my this:Q: Okay. Now, next question: I understand that Libra was added to the zodiac and broke Scorpio and Virgo apart. Were there originally 10 or 11 signs in the zodiac?
Q: You know what I mean!
A: There have been many combinations.
Q: Well, when did the present 12 sign zodiac begin to be established as it is?
A: 1302 A.D.
Q: And how many signs were there before that?
Q: That's what I thought. What is the source of the oldest zodiac available to us?
Q: Well, fine, what is the oldest extant source in terms of writings?
THE ORIGIN OF LIBRA
Libra (the scales) is the only one of the signs of the zodiac that is not an animal, but an object, which contradicts the etymology of zodiac, which means "wheel of animals".
It is also the only one that does not have a Greek mythological origin, this is because its constellation did not exist as such in Ancient Greece, but rather its stars were part of the Scorpio constellation.
Libra would become a constellation in Ancient Rome, when the dictator Julius Caesar ordered the creation of his own zodiacal constellation, which was created from the tweezers of Scorpio, and Ophiuchus (the serpent) was removed from the zodiac, to maintain the number of signs in twelve.
It would be with the passing of time, that Libra stopped representing Julius Caesar and began to relate to Astrea, goddess of justice.