Between 1951 and 1977, which foundation, endowed by a car-making family, gave hundreds of millions of dollars to public television?

Between 1919 and 1925, which sculptor made several marble and bronze versions of "Bird in Space"? Between 1921 and 1951, the Chicago Cubs held spring training on which island near Los Angeles, owned by the Wrigley fam… From the 1930s to 1970, millions of American children learned to read with books featuring which brother and sister and… Between 1937 and 1950, which boxer fought in 27 heavyweight title fights, winning 26? 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…