The Scorpio-Sagittarius cusp is the point that falls on the edge of, or between, these two signs. Although the exact date can vary, those born between November 20 and November 24 are said to be born on the cusp of Scorpio and Sagittarius.
The zodiac is composed of 12 houses, each ruled by a constellation. A cusp is an imaginary line that separates two adjacent signs of the zodiac. Many astrologers believe that those born on the cusp exhibit personality traits of both signs. A person born on a Scorpio-Sagittarius cusp may possess the determined, aggressive, passionate character of a Scorpio combined with the optimistic, adaptable and action-oriented traits of a Sagittarius. Because adjacent signs of the zodiac are always ruled by elements that do not merge well, it can be difficult to reconcile the contradictory traits.
Astrology is an ancient practice. According to the American Federation of Astrologers, the Babylonians created astrology and used their charts to predict the cycle of seasons and other celestial occurrences. During that period of history, there was no distinction between astrology and astronomy. The descendants of the Babylonians later introduced astrology to the Greeks and the Romans, where its popularity spread. Although no longer considered to be a science, astrology continues to be popular with certain segments of society.