music: 80's Chart Toppers: Name The Artist: Riders In The Sky?

Questions

Qatar declares independence from Britain.?

Pioneer 11 makes 1st fly-by of Saturn, discovers new moon, rings.?

Palestinian Liberation Organization leaves Lebanon.?

Korean Boeing 747 strays into Siberia and is shot down by a Soviet jet.?

BC Phidippides runs first marathon, to announce the victory of Sparta over Persia.?