Sorry for the confusion. I meant the seventies in my opinion started in 1971 and ended in 1980.
Giovanni started in 1968 and stopped in 1979. He's really a mystery to me. The first Colombian to turn pro but uncharacteristic of most Colombians, he raced on cobbled races in Belgium. First to Colombian to ever finish the Tour of Flanders and first to race the Tour of Spain though not finishing it.