UnScramble this Word: o s i a d Y l l?

Questions

In 1910 NY's Penn Station opens as world's largest ---------- terminal. ?

In 1945 Gen George C. Marshall named special U.S. envoy to---------- . ?

In 1951 First ---------- to intercept an airplane, White Sands, NM. ?

In 1967 Beatles release "Magical ---------- Tour." ?

In 1970 George ---------- releases 3 album set "All Things Must Pass." ?