Exactly 250 years ago today, ragtag Patriot militias engaged British Army regulars at Lexington and Concord in what would ...

FILE - Acton Minutemen and British soldiers fire a ceremonial volley from the North Bridge, after the re-enactment of the ...

Inside the steeple of Old North Church and among the Southern Colonies, less familiar stories of the events from 250 years ...

The BBC's Katty Kay speaks with Pulitzer Prize-winning author and historian Rick Atkinson as America marks 250 years since ...

The first military submarine was designed to sabotage enemy shipping, and underwater designs for the next century.