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The oldest known horoscope chart is believed to date to 409 B.C. Starting from 2 400 B. C. After lots of observing, documenting and discovering patterns, they created the zodiac wheel we still use today. -
A form of astrology was practiced in the Old Babylonia period of Mesopotamia. Babylonians continued to explore the starry sky and, inventing the first astrological system over thousands of years. -
Mayan Astronomers discover an 18.7- year cycle in the rising and setting of the moon -
The twelve zodiac signs were introduced between 409 B. C and 398 B. C during Persian rule. -
Babylonians use the zodiac to divide the heavens into twelve equal segments of thirty degrees each, the better to record and communicate information about the position of celestial bodies. -
Plato, a Greek philosopher, founded a school that would influence the next 200 years. Explaining how the universe moves in harmony and that the Sun, Moon, and the planets move around Earth in perfect circles. -
The practice probably began as soon as humans first started to observe astronomical cycles, with some of the earliest evidence dating from the 3rd millennium BCE. -
After the conquest of Alexandria in the 7th century, astrology was taken up by Islamic scholars, and Hellenistic texts were translated into Arabic and Persian. -
He builds a telescope to observe the Sun, Moon, planets and stars. Discovering the four moons revolving around the planet Jupiter. -
Galileo published a discussion in support. He supported his phone with a series of detailed engravings of his observations. -
Galileo published The Assayer, a discussion of physical reality-the "book of the universe" and the scientific method of exploring it. -
Leo published his book called The Art of Synthesis. Discusses the esoteric and intuitive aspects of astrology, explains planetary correlations with temperament, and provides twelve sample cases. -
Leo founded the Astrological Lodge of London. It is the foremost learning institution for the study of astrology in all its cultural, astronomical and historical uses in divination. -
On August 20, the Voyager 2 space probe was launched by NASA to study the Jovian system, the Saturnian system, the Uranian system, the Neptunian system, the Kuiper belt, the Heliosphere and interstellar space. -
The International Astronomical Union adopted a new definition of planet. A new distinct class of objects called dwarf planets was also decided. Pluto was redefined as a dwarf planet along with Ceres and Eris, formerly known as (2003) UB313.