The sign Aries, the ram, is the first sign of the zodiac in traditional western astrology. The sun enters this constellation on or about the vernal equinox, which was the New Year Day of the Middle Ages. Today, those born between March 20 and April 19 are considered to be born in Aries. The sign is ruled by Mars (which means it is associated with confidence and self-assertion, aggression, sexuality, energy, strength, ambition and impulsiveness) and considered a “fire” sign (i.e. with positive, extrovert characteristics).
Certain acts of ritual magic were considered especially effective if performed during the days of Aries. Strength, authority, and leadership could be supported and increased — or decreased and made weak — with magic while the sun or the moon passed through this sign. Divination concerning attacks of various sorts or aggression would be performed during this period. Nations and places — not only people — were considered to be under the protection of specific signs of the zodiac and England, Germany, Poland, Palestine, Syria, Lithuania belonged to Aries.
In general terms, an Aries personality is often enthusiastic, outward looking, brave and adventure-loving. The dark side of these traits, however, might also be present, to a greater or lesser extent: selfishness, quick to be angry, impatient or foolhardy.
A complete horoscope would include not only the birthsign and ruling planet but the position of the other planets in the various other constellations and signs of the zodiac. All these impact the final reading and the skilled interpretation of the chart is what most people consider “real” astrology.