History PredictorType in a date and time relative to your location. This can be in the past, present or future. What will return will be the 100 historical events (out of 7819) that best match the astrology of the date and time that you provide. Only the Sun, Moon, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto positions are considered. The dates used in calculating multiday historic events are the start dates. Be sure to read the paper below for more on this function.