Readers looking for new things will be pleasently surprised with this article. It does not contain loads of astronomy facts and mathematical calculations, and you do not need to be an astrologist or a historian to enjoy reading it. Personally, I am completely different.

Western astrology is based in ancient times, long before the Greeks began watching the skies. The people who settled in Mesopotamia (roughly, present-day southern Iraq) around 4000 BC considered the sun, the moon and Venus to be gods, or the homes of gods. Mixed with the other people were those who were believed to have the ability to contact Gods. They were able to tell of future events such as eclipses through keeping an eye on the planets and stars. The astrological theories that were gradually developed in ancient Mesopotamia are the basis upon which later astrological traditions were built, including classical Greek and Hellenistic astronomy. Hellenistic astrology has a hand in influencing other types of astrology.

How is Ptolemaic Alexandria defined? Alexandria, Egypt was founded by Alexander the Great in 331 BC and became the capital of the Ptolemaic Kingdom (named after its first ruler, Ptolemy) from 332 BC (when the Alexander died) until the time that Rome became conquerors of the Egyptians, thirty years before the birth of Christ. Alexandria continued to be the capital of Egypt for nearly a thousand years until the Muslim conquest of the country in the middle of the 7th century AD and Hellenism (the Greek way of life spread by Alexander) continued to prosper there throughout that time.

Hellenism is unique with distinct features that blend Classical Greek culture with the cultures of people, conquered by Alexander the Great, who were living east and south of them. In Alexandria, this translated into a mixture of Egyptian, Greek, Roman, Macedonian, Persian, Syrian, Jewish, and Babylonian (Mesopotamian) cultures. One aspect of the rich cultural activity underway in Ptolemaic Alexandria is the development of astrology. (ordinarily the date of the individual's birth or conception); most contain no predictions. Nevertheless, horoscopic astrology had its beginnings in Babylonian astrology.

During the middle of the 4th century BC, Babylonian astrology was introduced in Greece and using the names of the Gods in Greek mythology, the two practices blended together introducing those familiar names we know today. It was the development of the Horoscopic Astrology under Hellenistic rule in Ptolemaic Alexandria however that was the major contribution of the Greeks to Western Astrology.

It was in Ptolemaic Alexandria, now the center of Greek culture, that Babylonian astrology and Pharaonic Egyptian astronomy came together. Greek had become the language of communication from Greece to India to Egypt, allowing for unprecedented amalgamation of knowledge. Hellenistic astrology was built on Egyptian and Babylonian traditions and produced a system of Horoscopic Astrology that is the origin of the modern day western Horoscopic Astrology.

The work of an astronomer / astrologer by the name of Claudius Ptolemy was particularly important to the development of horoscopic astrology in Alexandria at the time. Even though Ptolemy was born in the Southern half of Egypt, he is still considered a Hellenistic scholar (85 BC?) and died in Alexandria (165 BC?), no one knows whether he was Egyptian or Greek. It does not matter if he was a Greek born in Egypt with a Roman citizenship.

Tetrabiblios was one of Ptolemy two best known works (where he compiled all known astrological theories of the time), and the Almagest (a thirteen volume discussion of how the solar system functions). Ptolemy believed that the earth was round, even though he claimed the everything else in the universe revolved around the earth. The Ptolemaic theory taught astronomy students that the sun revolved around the earth for 1400 years, until it was found that the opposite was true. Though Ptolemy made an incredible contribution towards the Horoscopic astrology yet we are unable to discover any horscopes made by him.

There are many zodiacs from the Ptolemaic era which give proof of Egypt's contributions to Horoscopic Astrology. The most widely known of these is the Dendera zodiac, found on the ceiling of a chapel dedicated to the Egyptian goddess Osiris. You will be able to visit and glance at these articles in the Louvre Museum in Paris.

In the early 19th century, the renowned French linguist Jean-Francois Champollion (who, just a few years earlier, had managed to decipher hieroglyphics) correctly dated the Dendera zodiac to the Ptolemaic era. The accepted date of 50 BC is shown the set date of the stars and planets. The Dendera zodiac shows the twelve constellations and this is the map of the starts in plane projection (the band of the zodiac) making the 36 ten-day Decans, as more proof of how the Babylonian astrology combined with the traditional Egyptian Decan astrology.

The Horoscopic Astrology developed by Hellenistic scholars in Ptolemaic Alexandria was the result of the fusion of Mesopotamian, Egyptian and Greek astrology. The seventh century AD marked the end of Hellenistic astrology. In the eighth century, Muslim scholars revitalized interest in the basic elements of ancient astronomy to provide the original source for Western Horoscopic Astrology as we know it today.