NEW YORK--(BUSINESS WIRE)--As part of its holiday Believe campaign, Macy’s has declared Friday, Dec. 12, as the sixth annual National Believe Day – devoted to embracing the season’s spirit of generosity and kindness toward others. To honor this special day, Macy’s and Make-A-Wish will grant more than 50 “Wishes Across America” to children with life-threatening medical conditions, and customers can share in the magic through a new, interactive Believe Together online hub at macysbelievetogether.