Major League Baseball used two iconic symbols of America's pastime Thursday to introduce an unprecedented effort with the National Baseball Hall of Fame to share the game's rich history with its fans. Legendary Los Angeles Dodgers broadcaster Vin Scully narrated a video reading lines from "Field of Dreams" and commissioner Rob Manfred visited the house where much of the movie was made to announce a multiyear effort to bring Hall of Fame artifacts to hundreds of cities around the country. Not everyone can travel to Cooperstown, N.Y., to visit the complete museum and see all of its offerings, but baseball fanatics at least will be able to experience some of its history and artifacts, which are leaving the museum for the first time in the "We Are Baseball" tour. It's the first time MLB has organized such a tour. Commissioner Rob Manfred chats with Betty Boeckenstedt, born/raised in Field of Dreams house. Family 1st owners. pic.twitter.com/XDcZIOqKnn — Alyson Footer (@alysonfooter) May 26, 2016 [Elsewhere: Is Wade Boggs throwing shade at Red Sox with Yankees ring? ] The traveling exhibit will visit six cities by the end of the World Series this season starting in Davenport,...