I'll try to be simple, to reinforce my own knowledge, gain new knowledge, and make it understandable to anyone who wants to read. If something seems convoluted or strange... it's probably how I remember something. Ask for explanations, I'll try.
The Zodiac Signs
Aries - March 21 - April 20
Taurus - April 21 - May 21
Gemini - May 22 - June 21
Cancer - June 22 - July 23
Leo - July 24 - August 23
Virgo - August 24 - September 23
Libra - September 24 - October 23
Scorpio - October 24 - November 22
Sagittarius - November 23 - December 21
Capricorn - December 22 - January 20
Aquarius - January 21 - February 19
Pisces - February 20 - March 20
[Footnote: The dates are an approximation, though usually a good one. There are charts (such as the ones in The Only Astrology Book You'll Ever Need, by Joanna Martine Woolfolk) and computer programs that can tell you what the exact dates are.]
The Significance of Sun Signs
The sun sign, determined by which zodiacal constellation the sun was in when a person was born, is what the world sees of that person.
Aries as a Sun Sign
March 21 through April 20
The constellation of Aries is a ram, an animal that likes to fight. And butt its head against brick walls. I haven't observed an actual affinity for fighting in my Aries mother, though--just a real skill at it.
The ruling planet is Mars, named for a god of war.
Aries rules the head. Aries is prone to headaches and facial injuries. (My mother has headaches all the time. Tension from butting her head against brick walls. Ha.)
As a personal observation, Aries seem to always have arched eyebrows.
I have to quote this, from The Only Astrology Book You'll Ever Need:
'The amusing little prayer, "Grant me patience NOW!" is typical of the Arien attitude.'
That's my mother. I don't do yoga with her anymore because when you're supposed to be lying down and breathing, she grabs a set of weights and starts lifting them, or does leg stretches. "Mom. You're supposed to be relaxing." "I don't have time!" "Arrrrrg."
Aries is the birth of the cycle; I've always found this interesting, myself. I don't know if it's significant, but I think it's worth mentioning. Birth, beginnings...
Ah--I've run out of time and attention span. I apologize. I will continue this tomorrow. Meanwhile, correct me;)