The main event in any month is the passing of The Sun from the Zodiac Sign in which it commences the month in to the neighbouring constellation. Each October The Sun begins in the Zodiac Constellation of Libra, and enters Scorpio on October 22nd. This is where we get our Star Sign, or more accurately our Sun Sign from. Persons born when The Sun is in a particular constellation are said to be of that sign, in October either Libra or Scorpio. Anyone born on October 22nd around the transition between the two signs is said to be on the Cusp, and will show traits from both signs.
The cusp between Libra and Scorpio is a very difficult one to pin down as the two signs show such opposite characteristics. Libra is the most balanced of personalities and Scorpio is the most contrary. If you were born on October 22nd you will have to let us know your thoughts on the subject, we would love to hear about your experiences.
The exact time of transition will vary from year to year as The Earth orbits The Sun in a little over 365 days, which also gives us our leap years. The exact position of The Sun will determine the precise transition point.