tv/ movies: category: movie trivia: mgm is an acronym for this?

Questions

In 1991 Rajiv ---------- Indian Prime Minster, assassinated. ?

In 760 14th recorded ---------- passage of Halley's Comet.?

In 1807 Townsend ---------- 1st sells fruit-flavored carbonated drinks (Phila).?

In 1813 Richard ---------- Leipsig Germany, composer (Ring, Flying Dutchman, Ride of the Valkries), born.?

In 1858 Confederaci?