Zodiacs are when certain star patterns are seen in the night school during different times of the year. It means "circle of animals" This happens as the earth rotates around the sun and different stars can be seen. A very long time ago people started to give meaning to a person's life and what would happen to them in the future based on which zodiac appeared when they were born.
I personally don't believe in them. When the books were written the sky was very different than today, and in a few thousand years completely different stars will appear for the same day a person is born, meaning the rules won't even hold. They have done studies where people were told random things from all the different zodiac signs and told it was theirs, but there was no difference in how accurate the people said they were.
A recent study did relate a persons health to when they were born, but that has more to do with climate and other factors that can influence future risk disease than the stars.
Here are the signs with descriptions.
Aries March 21 - April 19 Active, Demanding, Determined, Effective, Ambitious
Taurus April 20 - May 20 Security, Subtle strength, Appreciation, Instruction, Patience
Gemini May 21 - June 20 Communication, Indecision, Inquisitive, Intelligent, Changeable
Cancer June 21 - July 22 Emotion, Diplomatic, Intensity, Impulsive, Selective
Leo July 23 - August 22 Ruling, Warmth, Generosity, Faithful, Initiative
Virgo August 23 - September 22 Analyzing, Practical, Reflective,
Observation, Thoughtful
Libra September 23 - October 22 Balance, Justice, Truth, Beauty, Perfection
Scorpio October 23 - November 21 Transient, Self-Willed, Purposeful, Unyielding
Sagittarius November 22 - December 21 Philosophical, Motion, Experimentation, Optimism
Capricorn December 22 - January 19 Determination, Dominance, Persevering, Practical, Willful
Aquarius January 20 - February 18 Knowledge, Humanitarian, Serious, Insightful, Duplicitous
Pisces February 19 - March 20 Fluctuation, Depth, Imagination, Reactive, Indecisive
