UnScramble this Word: t l k g a i s n?

Questions

In 1849 Sir Ambrose Fleming, inventor of the ---------- ?

In 1864 Colorado militia kills 150 peaceful ---------- Indians. ?

In 1887 U.S. receives rights to ---------- Harbor, on Oahu, Hawaii. ?

In 1922 King Tut's Tomb is discovered in---------- . ?

In 1924 Italian composer Giacomo Puccini died in---------- . ?