Misc: Gunpowder is formed after mixing charcoal, saltpetre and _______?

Questions

35AM, for 12 seconds, first sustained motorized aircraft flight (36 meters) by ---------- Brothers at Kitty Hawk, NC. ?

In 1908 Willard Frank Libby, invented carbon-14 "---------- clock", born. ?

In 1920 Japan receives League of Nations mandate over ---------- islands. ?

In 1959 First movie opening ---------- in major cities "On The Beach". ?

In 1979 Budweiser ---------- car reaches 1190 kph (record for wheeled vehicle). ?