GENERAL KNOWLEDGE: Mythology, who blinded Polyphemus?

Questions

In 1984 Rev Martin ---------- King Sr, dies in Atlanta at 84. ?

In 1987 Van ---------- "Irises" sells for record $53.6 million at auction. ?

In 1859 Jules Leotard performs the first Flying ---------- circus act in Paris. He also designed the garment that bears his name. ?

In 1918 Austria becomes a---------- . ?

In 1927 ---------- expelled from Soviet CP; Stalin becomes undisputed dictator. ?