In honor of the baseball season’s opening day, visit the brand-new virtual museum of baseball history, The National Pastime. It is an astonishing treasure trove, based on a collection of over 25,000 items, including equipment, contracts, photos, and artifacts. Gaze on the bats of the greatest hitters of all time. See photos going back to the earliest origins of the game in 1845, and Inside Baseball Magazine’s portrait of Jackie Robinson, the first black player in the major leagues (and he subject of the upcoming film, “42”). Read about baseball history and read articles by a line-up of nine great sportswriters. Play ball!