Ska for the Skeptical
"The one thing anyone should know about ska is that it is the music of Jamaica. while the origin of the term "ska" is relatively uncertain, rest assured that the music is not principally represented by hyperactive groups of pre-teen children listening to Reel Big Fish and sometimes appearing in Capri Sun advertisements. (S)ka is Jamaica's heritage, and more recognized types of Jamaican music (ie: reggae, rocksteady) are primordially borne of ska. the music came into its own during the late 50s, when the stylings of mento, jazz, and american r&b converged in dance halls and studios to produce an entirely new genre of music." (from Ska for the Skeptical)
Ska starts off in the mid-1950's and other Jamiacan styles are rooted there.