Short answers, pulled from the story.
Dancehall music emerged in the late 1970s from Kingston's inner-city neighborhoods. This sound grew out of political turbulence when Michael Manley's socialist government gave way to Edward Seaga's Jamaica Labour Party.
The genre received its official name only in the 1980s when InnerCity Promotions joined Dance and Hall into one word. Michael Tomlinson and Lois Grant staged events like Saturday Nite Live at Harbour View Drive-In starting in 1982.
King Jammy's 1985 hit song Under Me Sleng Teng by Wayne Smith changed everything with an entirely digital rhythm hook. This track used a Casio Casiotone MT-40 electronic keyboard instead of live instruments.
Shabba Ranks won his first Grammy Award in 1991 with As Raw as Ever marking a major commercial breakthrough for the style. The genre gained mainstream popularity across Jamaica the United States Canada and Western Europe by the early 2000s.
Real Rock recorded in 1967 for a song of the same name appeared in at least 269 songs by 2006 over 39 years. A single riddim can be used in multiple songs paired with different sets of lyrics or vice versa.