UnScramble this Word: p e a r e d s r?

Questions

In 1959 NASA announces first ---------- astronauts with The Right Stuff.?

In 1967 First Boeing ---------- rolls out.?

In 1983 Sixth Space Shuttle Mission - ---------- returns to Earth.?

In 1790 U.S. ---------- system established?

In 1864 Austrian Archduke ---------- became emperor of Mexico.?