tv/ movies: Who is "America's sweetheart"?

Questions

First video recording on magnetic tape televised coast-to-coast.?

The ill-fated revolt in Communist Hungary starts -- The Prague Spring. It was later crushed by Soviet tanks.?

Soviet novelist Boris Pasternak, wins Nobel Prize for Literature.?

President Nixon agrees to turn over White House tape recordings.?

By 2/3 majority, Panamanians vote to approve the new Canal treaties.?