Cooper's Is Closed in observance of Memorial Day. Memorial Day, originally called Decoration Day, is a day of remembrance for those who have died in service of the United States of America. Over two dozen cities and towns claim to be the birthplace of Memorial Day. While Waterloo N.Y. was officially declared the birthplace of Memorial Day by President Lyndon Johnson in May 1966, it’s difficult to prove conclusively the origins of the day. Regardless of the exact date or…