Between 1961 and 1983, which nation sent many Venera probes to study the atmosphere and chemistry of Venus?

Between 1955 and 1982, a good polka was often featured on which bandleader's "wunnerful" TV program? From 1960 to 1975, Madagascar was officially known by what name? Which planned capital, inaugurated in 1960, grew to more than a million people by 1980? Which "Godfather of Soul" had dozens of Top 40 hits from the 1960s to the 1980s but never a No. 1 on the Billboard Hot… From 1963 to 1973, which Florida landmark was officially known as Cape Kennedy? Between 1966 and 1975, which woman won the Wimbledon singles title six times and also beat Bobby Riggs? Between 1971 and 1985, which artist secretly made more than 240 works depicting his neighbor Helga Testorf? Between 1977 and 1980, which player won a state high school title, an NCAA title and an NBA title?