Boston Common was awash in a sea of American flags on Thursday after hundreds of volunteers stuck them in the grass to honor Massachusetts' fallen heroes.

The 37,000 flags, which will be there throughout Memorial Day Weekend, represent the service men and women from the state who have died since the Revolution. The annual event is run by the Massachusetts Military Heroes Fund

During Thursday's ceremony, Gov. Charlie Baker and Boston Mayor Marty Walsh also read the names of 230 Massachusetts soldiers who have died since the 9/11 terror attacks.