Origin of Minor Aspects

Thought it might be more efficient to pose a question to my fellow knowledgeable astrologers than trawl google.

When did the minor aspects 'arrive' in astrology? What is their origin?

Johannes Kepler, mainly. He was also the first (astrological practitioner) to dismiss houses, and (pretty much) signs as well, in his (attempted) reconstruction of astrological theory and practice...

dr. farr said:

Johannes Kepler, mainly. He was also the first (astrological practitioner) to dismiss houses, and (pretty much) signs as well, in his (attempted) reconstruction of astrological theory and practice...

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Thank you.

You don't use them, dr. farr?

I only consider the semi-sextile and the quincunx, in natal and event type charts (I only use the basic ptolemaic aspects in horary) However, the quincunx (as "inconjunct") does go back in time before Kepler, although it never was applied very often.