Misc: what's the name of snoopy's secretary??

Questions

First self-sustaining nuclear chain reaction demonstrated in one of the squash court under Stagg Field, University of Chicago.?

First "Peanuts" Comic Strip featuring Charlie Brown and Snoopy appears, in 9 newspapers?

Sting, musician (Police), actor (Dune)?

"Alfred Hitchcock Presents" premiers.?

First atomic power clock exhibited -- New York City.?