Name The Year: Charles VII, Holy Roman emperor (1742-45), born.?

Questions

In 1975 Spain's Gen. Francisco Franco dies in ---------- at 82. ?

In 1977 Egyptian President Anwar Sadat became first ---------- leader to address Israel's Knesset. ?

In 1980 Steve Ptacek in Solar Challenger makes first solar-powered---------- . ?

In 1986 UN's WHO announces first global effort to combat---------- . ?

In 1959 Jack Benny (Violin) and Richard ---------- (Piano) play their famed duet. ?