The Lexington Minutemen reload blanks into their rifles during the St. Patrick's Day Parade in South Boston, Massachusetts March 15, 2015. For the first time in the 114-year history of Boston's St. Patrick's Day parade, gay rights activists marched openly on Sunday under rainbow banners in the city's annual celebration of its Irish heritage, after organizers lifted a longtime ban. Two groups, Boston Pride and OutVets, were among dozens of contingents taking part in the parade through the center of South Boston, once an insular Irish-American neighborhood near downtown that has undergone gentrification in recent years. REUTERS/Dominick Reuter (UNITED STATES - Tags: SOCIETY ANNIVERSARY)