Because I'm lazy, and more importantly because I have so much to do and because this subject is well-known, I'm quoting here from the Wikipedia page "Astrology"
"During the middle of the 20th century, Alfred Witte and following him Reinhold Ebertin pioneered the use of midpoints (midpoints in Astrology) in horoscopic analysis. From the 1930s to the 1980s, astrologers including Dane Rudhyar, Liz Greene and Stephen Arroyo pioneered the use of astrology for psychological analysis, with some following the lead of psychologists like Carl Jung. In the 1930s, Don Neroman developed and popularised in Europe a form of Locational Astrology under the name of "Astrogeography." In the 1970s, American astrologer Jim Lewis developed and popularized a different approach under the name of Astrocartography. Both methods purport to identify varying life conditions through differences in location.
In modern times, Indian, Chinese, and Western astrological traditions have come into greater contact with each other, notably with Indian and Chinese astrology having spread to the West, while awareness of Western astrology is still fairly limited in Asia. Astrology in the Western world has diversified greatly in modern times. New movements have appeared, which have jettisoned much of traditional astrology to concentrate on different approaches, such as a greater emphasis on midpoints, or a more psychological approach. Some recent Western developments include modern tropical and sidereal horoscopic astrology; cosmobiology; psychological astrology; sun sign astrology; the Hamburg School of Astrology; and Uranian astrology, a subset of the Hamburg School."