1902: 	Following the development of Ragtime, “Jelly Roll”
                Morton popularizes a music form based on Jazz and 
                French quadrilles (a Creole style).  The music is a hit in
                New Orleans and quickly spreads.

1925:	“Satchmo” Louis Armstrong makes his Hot Five and Hot 
                 Seven recordings and jazz becomes mainstream.

1929:  	Glen Miller and Duke Ellington create and popularize Swing 
                style music.

1935:	Manhattan N.Y. becomes the home of Dizzy Gillespie, Miles 
	Davis, and Thelonious Monk.  At this time, the major thing 
	for Jazz is larger bands rather than small combos.

1939:	Charlie Parker happens upon a harmonic discovery that leads to 
	be-bop, a more intricate style of Jazz, harmonically and rhythmically.

1943:	Jazz music gains recognition as a true art form, when Duke Ellington 
	hosts a concert at Carnegie Hall.

 1950:	In stark contrast to the rest of society, by now most audiences 
	don't care about mixed black and white bands.  Unfortunately at this 
	time McCarthy-ism is forcing Jazz club owners out of business, 
	because of their reputation for free thought and radical ideas.

1967:	By this time the guitar has caught on in Jazz, and Jimi Hendrix 
	releases his first album “Are You Experienced?”  The Beatles 
	release “Sgt. Pepper's Lonely Hearts Club Band” which influences 
	not only rock but Jazz as well.

1973:	Fusion, a blend of Jazz and more new age beats, is rising in popularity. 
	It won't be a major subset of jazz for another ten years, however.