1. 10
   8
2. 12
   15

The 12 zodiac signs (Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius, Pisces) represent the earth's 24-hour rotation around its axis. The zodiac wheel, meanwhile, represents the annual rotational movement of the sun.

1. Virgo
   Ophiuchus
2. Serpentarius
   Scorpio

Although astronomers discovered it in 1604, Ophiuchus, located just northwest of the Milky Way, remains one of the least well-known constellations. The name stems from the Greek "serpent-bearer" and is symbolized by a man with a snake in his grip.

1. Scorpio
   Sagittarius
2. Aries
   Capricorn

Aries is the first sign of the zodiac and spans from March 21 to April 20 each year. Kicking off spring equinox, Aries appropriately symbolizes birth, fertility and the fruition of life.

1. Aquarius
   Sagittarius
2. Aries
   Pisces

The last Zodiac sign, Pisces, represents death and consciousness. The sign stretches from February 19 through March 20, and astrologers also deem Pisces among the more enigmatic and mysterious of the signs.

1. The scale
   The twins
2. The ram
   The virgin

The twins represent Gemini, a sign characterized by its dual nature. Astrologers often describe Geminis as possessing two different personalities, and they are also known to be very flexible.

1. Aries
   Capricorn
2. Virgo
   Taurus

Given the name, one might assume that "Ares" is an air sign, but it's actually a water sign. Capricorn, Virgo and Taurus are earth signs, which tend to be practical and grounded in reality. If you need someone to plan or analyze, Earth signs have your back.

1. 4%
   25%
2. 32%
   57%

Astrology may have simmered out and died in academic circles, but it remains quite popular in the cultural sphere. Some may check their horoscope "just for fun," but at least 25% in one poll admit they believe it has some impact on their lives.

1. The earth, the sun, the planets and the goddess
   The moon, the sun, the weather god and Venus
2. The earth, wind, fire and water
   The balance, the scorpion, the moon and the sun

Ancient Mesopotamians separated the "Enūma Anu Enlil" into these four distinct categories named after chief gods associated with the contents: Sin (the moon), Shamash (the sun), Adad (the weather god) and Ishtar (Venus). This text contains omens about a range of phenomena including crescents, eclipses, two suns, thunder, lightning and risings of the planets.

1. Around 600
   About 1,000
2. Over 7,000
   About 50,000

According to the American Federation of Astrologers, there are more than 7,000 professional astrologers in the U.S. Despite astrology's decline in academic spheres, it continues to maintain social relevance.

1. Scorpio
   Cancer
2. Gemini
   Pisces

Cancer, Scorpio and Pisces are water signs. Astrologers characterize water signs by their fluidity. They tend to 'swim' easily from their imagination to reality and back, making them a highly sensitive and creative bunch.

1. Scientific elements
   Deities
2. Stars
   Aliens

While many versions of astrology ascribe to a mechanistic view of the universe, ancient peoples like the Harranians and the Hindus believed that the planets functioned like powerful deities. As such, they believed one could persuade these godlike beings or communicate with them supernaturally.

1. Sun sign reveals natural self; moon sign reveals self determined by nurture
   Sun sign reveals external behavior; moon sign reveals inner emotions
2. Sun sign reveals inner emotions; moon sign reveals external behavior
   Sun sign reveals personality traits; moon sign reveals romantic compatibility

Astrologers use a calculation that includes one's birth date, time of birth and place of birth to determine their moon sign. The moon sign reveals your inner-most emotions and mood, which may or may not contradict your external behavior. Some people possess the same sun and moon sign, for instance, but many do not.

1. To categorize people into groups that would work well together
   To inform the royal court of looming disaster or success
2. To determine one's individual personality traits
   To determine relationship compatibility with other individuals

According to historians, the planets sometimes revealed to ancient Mesopotamians insights about illness, epidemics or significant weather events. More often, though, they reportedly foretold information about military matters or the personal lives of the ruler and family.

1. 50 degrees
   10 degrees
2. 30 degrees
   90 degrees

The Babylonians divided the 360 degrees of the sun into 12 equal parts, which equal 30 degrees each. They called each sign the domicile of a planet and subdivided them into units of 10 degrees called "decans."

1. Aristotelean astrology
   Hellenistic astrology
2. Interrogatory astrology
   Mesopotamian astrology

Interrogatory astrology is a type of consulting that remains very close to divination, rather than the determinism inherent in other types of astrology like catarchic. It requires that the astrologer prepare to "read" a situation through rituals and purification practices.

1. Capricorn
   Gemini
2. Libra
   Aquarius

Air signs include Aquarius, Libra and Gemini. Astrologers typically portray these signs as individuals who express their emotions freely and communicate effectively. They tend to be idealistic and open to the ideas of others.

1. Aries
   Leo
2. Scorpio
   Sagittarius

Fire signs include Aries, Leo and Sagittarius. Like fire, astrologers characterize them for their spontaneity and intense passion. They tend to be excitable, impulsive and incredibly persuasive, according to devout astrology followers.

1. Aquarius
   Scorpio
2. Sagittarius
   Leo

According to one study, there are more Scorpio major world leaders than any other signs. Known for their ambition, famous Scorpios include Theodore Roosevelt, Marie Antoinette, Hillary Clinton, Indira Gandhi, Robert F. Kennedy, Martin Luther and Leon Trotsky.

1. Egypt
   Iraq and Khuzistan
2. Modern-day Iran
   India

The Mandaeans are a Gnostic sect that still exists in Iraq and Khuzistan. The ancient book explores the concept of celestial omens, but historians remain unsure whether the ideas stemmed from Mesopotamia, the Greeks or Indian traditions.

1. Homer
   Ptolemy
2. Pliny the Elder
   Copernicus

Heavily influenced by Babylonian ideas, the Magusaeans' ideas ultimately spread to the Greeks. In addition to Pliny the Elder's works, they wrote "Geoponica," an important collection of agricultural folklore and beliefs.

1. To predict one's death
   To help farmers determine when to sow and harvest
2. To determine fertility in women
   To help cultivate harmonious romantic relations

The zodiac was originally created as an agricultural calendar as a way to help farmers track their harvests and know when to sow seeds. They used the position of the star constellations in the sky to do so.

1. Mesopotamia
   Newton physics
2. Hellenistic philosophy
   Aristotelian philosophy

The Hellenistic philosophy period of Western philosophy starts just after Aristotle's ideas and concludes with the rise of Neoplatonism. These astrologers believed that the sun and moon revolved in orbits with centers near Earth's center and that the stars remained fixed around a finite sphere.

1. A cult
   A pseudoscience
2. A religion
   A hoax

While scientists historically ascribed to tenets of astrology, today, most classify the practice as a pseudoscience. This means that the facts intrinsic to astrology remain incompatible with the scientific method. The term is often used pejoratively to describe subjects like astrology, alchemy and alternative medicine.

1. General
   Genethlialogy
2. Catarchic
   Interrogatory astrology

Catarchic astrology directly opposes genethlialogy, which determines a solidified fate based on one's birth. This is the type of astrology that became popular in Mesopotamia. Essentially, rather than the cards being set in stone, one could view the cards and alter them.

1. The moon and the sun
   Three categories of yogas
2. Two additional signs (Virgo and Cancer)
   Mechanistic physics

The Indians added an intricate system of three categories of yogas, or planetary combinations, which correspond to the different zodiac domiciles. They also incorporated planetary "Dashas," or directional effects, which continue to distinguish Hindu astrology from Western astrology to this day.

1. United States
   China
2. India
   Japan

In India, only a small percentage of the elite have been trained in Western physics to this day. As a result, astrology continues to retain scientific validity, and several prominent universities offer advanced degrees in the subject.

1. In the 10th century
   In the 16th century
2. In the 8th and 9th century
   In the 4th and 5th century

Astrology entered the Islamic tradition through three distinct paths: Hellenistic, Indian and Sāsānian astrology. Islamic society (Abū Maʿshar in particular) then introduced Harranian astrology through the incorporation of astral influences based on Aristotelian physics.

1. 19th century
   12th century
2. 16th century
   11th century

In the 16th century, Copernicus effectively displaced Earth from the center of the universe, posing a logistical challenge to the entire crux of astrology. Soon after, the ideas of Galileo, Johannes Kepler, Descartes and Newton caused astrology to lose its scientific integrity. Kepler tried to reconcile astrology with his theory of mechanistic physics but failed.

1. Kepler
   Copernicus
2. Galileo
   Ptolemy

Ptolemy was a famous astronomer in the second century A.D. In "Work on Astrology," he compiled information about lunar omens from a papyrus dating to about 500 B.C. as well as fragments of a Greek text written in the second century B.C., which King Nechepso wrote to the priest Petosiris.

1. Urdu
   Virgo
2. Baru
   Bardo

A priestly or prophetic figure, the baru interpreted the celestial "omina," or ancient warnings, from the sky and passed the information on to the ruler. The baru would also advise the leader on how to best avoid negative fates via a strategic plan of action.

1. Virgo
   Taurus
2. Scorpio
   Cancer

According to FBI data on criminals and birth dates, some conclude that cancers must be the most dangerous of all the zodiac signs. Not only have police arrested them in the U.S. more frequently, but they also allegedly commit more serious crimes.

1. Capricorn
   Scorpio and Pisces
2. Gemini and Virgo
   Taurus

Scorpio and Pisces signs have historically held U.S. presidential office more frequently than any other. Gemini presidents, meanwhile, are the least common — there have only been three in history.

1. Scorpio
   Capricorn
2. Virgo
   Libra

Represented by the balance, astrologers appropriately say that Libras love to attain balance and harmony in their lives. They tend to appreciate high art and intellectualism and are ruled by Venus, the goddess of love and beauty.

1. Liz Greene
   Wililam Lily
2. Nostradamus
   Alan Leo

Around 1555, the famous oracle Nostradamus began publishing cryptic poetry attracted the patronage of prominent individuals like Queen of France Catherine de' Medici. Long after his death, fans continue to connect his work to major historical events of today. The quatrains supposedly predicting Hitler include, "From the depths of the West of Europe, A young child will be born of poor people, He who by his tongue will seduce a great troop; His fame will increase towards the realm of the East ... Beasts ferocious with hunger will cross the rivers, The Greater part of the battlefield will be against Hister. Into a cage of iron will the great one be drawn, When the child of Germany observes nothing."

1. George Washington
   Abraham Lincoln
2. Benjamin Franklin
   Henry Ford

U.S. Founding Father Benjamin Franklin reportedly used astrology to predict the death of famous 18th-century almanac publisher Titan Leeds. He allegedly started as Franklin's good friend and peer, but he became a rival when Franklin published "Poor Richard's Almanack." When Leed didn't die as predicted, Franklin called him "The Ghost of Mr. Leeds" and requested he leave Earth.

1. St. Lucius
   St. Urban I
2. Leo the Great
   St. Sixtus IV

Sixtus IV became the first pope to interpret a horoscope, and leaders like Leo X and Paul III soon followed in his footsteps. After the Middle Ages, support for astrology waned in the Catholic church.

1. Scorpio
   Sagittarius
2. Virgo
   Leo

Astrologers often call out Leos for their pride and vanity, so it might make sense that they are significantly more likely to hit the gym. A survey of 10,000 U.K. women found them twice as likely to exercise in a gym regularly.

1. Gemini
   Aquarius
2. Scorpio
   Sagittarius

About one in five child stars are Sagittarius sun signs, and they remain the most likely to become famous — at least, that's what Cartoon Network research says. Indeed, many top pop stars like Britney Spears, Christina Aguilera, Taylor Swift, Nicki Minaj, Miley Cyrus and Billie Eilish are Sagittariuses.

1. Homer
   William Shakespeare
2. Dante Alighieri
   Geoffrey Chaucer

Astrology was a popular subject in monumental works of literature like Dante's "Inferno," Chaucer's "The Canterbury Tales" and Shakespeare's "Henry VI," "Rome and Juliet, "Julius Caesar," "Hamlet" and "King Lear." "Comets, importing change of time and states," Shakespeare writes in "Henry VI."

1. Greece
   Egypt
2. Rome
   Mesopotamia

While historians think Mesopotamia influenced the Egyptian zodiac, Egypt still possesses the first known evidence of one. The Dendera Zodiac contains signs we know today, like the scorpion (Scorpio), the balance (Libra) and the bull (Taurus).