UnScramble this Word: n a r r e g e l?

Questions

In 1532 Pizarro seizes ---------- emperor Atahualpa. ?

In 1873 William Handy, blues musician, established the popularity of the ---------- in band music ?

In 1894 6,000 Armenians massacred by Turks in---------- . ?

In 1933 Roosevelt establishes diplomatic relations with the ---------- Union. ?

In 1950 The United Nations gets approval from the U.S. government for issuing ---------- stamps. ?