There is general agreement amongst astrologers about the signs and what they signify. Houses are much more controversial. There are many different ways to define the location of the house cusps, and so to determine in which house a planet is located.
The great megalithic monuments of Ireland were constructed from 4000-2800 BCE. From Sligo to Dublin are monuments that are today referred to as passage tombs. The people who built them left no written records so we can only speculate why they were built.
Galileo practised astrology in a matter-of-fact way. He was a heliocentric astronomer/astrologer – a radically new thing among 17th century Mathematici. He didn't re-evaluate astrology, as his contemporary Kepler did, but interpreted horoscopes to advise his patrons.
If research results can be replicated, it means results are more likely to be correct, and future predictions can be made. The more certainty we have, the more useful the research and the more accurate future predictions will be.
It is said that when he was near death, Plato had a dream in which he saw himself changed into a swan that flew from tree to tree making it difficult to catch him. Of all the philosophers, Plato is perhaps the most difficult to feel that one has him and his meaning properly netted and secure.
Sir Isaac Newton is best known as one of the greatest scientists there has ever been. However, other than rumour, there is no record of him having a specific interest in astrology. Nevertheless, Newton was an avid student of alchemy and theology.