Chaldean is believed to be the oldest of the systems of numerology. The use of numbers for predictive purposes were used by Chaldeans, Phoenicians, Hindus, Chinese, Hebrews, and early Christians.
The Chaldean System converts letters to numbers using numbers 1 to 8. Most of the symbology employed followed the progression of numbers, with Ones signifying a beginning or genesis, the higher numbers representing the progress through life, and Eights signifying completion.
The Chaldean System is sometimes called Mystic Numerology vs. the more commonly used Pythagorean System.