A Parade of Ships on the Delaware River on Thursday kicked off celebrations in honor of the 250th anniversary of the U.S. Navy and Marine Corps, and marked the start of the semiquincentennial of the United States. To watch the parade on the river, hundreds gathered under a cloudless sky at Philadelphia’s Navy Yard and… The post Parade of Ships on the Delaware River honors 250th anniversary of the U.S. Navy appeared first on Delaware Currents.| Delaware Currents