Baseball and law have intersected since the primordial days. In 1791, a Pittsfield, Massachusetts, ordinance prohibited ball playing near the town's meeting house. Ball games on Sundays were barred by a Pennsylvania statute in 1794. In 2015, a federal court held that baseball's exemption from antitrust laws applied to franchise relocations. Another court overturned the conviction of Barry Bonds for obstruction of justice. A third denied a request by rooftop entrepreneurs to enjoin the construction of a massive video screen at Wrigley Field. This exhaustive chronology traces the effects the...