Gallagher v. Crown Kosher Super Market of Massachusetts, Inc.
Gallagher v. Crown Kosher Super Market of Massachusetts, Inc., 366 U.S. 617 (1961), is a United States Supreme Court case that declared that a kosher butcher store had to abide by the state laws that banned them from selling on Sunday.
Source: Wikipedia — Gallagher v. Crown Kosher Super Market of Massachusetts, Inc. (CC BY-SA 4.0)