music: Name the Artist/Band that recorded this song: When I Need You (Hammond/Sager)?

Questions

In 1973 Last US troops leave Vietnam, 9 yrs after the ---------- Resolution.?

In 1974 Mariner 10, ---------- flyby.?

In 1719 Sir John---------- , wrote first history of music in English, born.?

In 1746 Francisco Jose---------- , artist, born.?

In 1842 Dr C. Long first used ether as an ---------- during a minor operation.?