Historical clue formulations

• Film character who says "E.T., stay with me" — 2017-08-11
• Canadian P.M. Pierre Trudeau's middle name — 2013-05-16
• E.T.'s pal — 2010-01-22
• Bob of the comedy team Bob and Ray — 2004-04-18
• Bob of the Bob and Ray comedy team — 1999-11-08