Just to clear up a point:   the write-up on flamenco on Wikipedia is pretty accurate.

I have several books on flamenco, both musical and historical, and I took flamenco guitar lessons from Antonio Zori, one of the guitarists who was performing, both as a solo guitarist and accompanying dancers, at the Spanish Village exhibit at the Seattle World's Fair in 1962. I also learned a great deal about flamenco in all its aspects from a friend named William James (distantly related to the more famous William James). Bill made yearly trips to Spain, and he put me in touch with the Madrid luthier who made my flamenco guitar for me.

Flamenco blended itself together in Andalusia, but it is, indeed, a combination of several cultural and historical influences—exactly as Diane said.

Don Firth