To mark the 250th anniversary of the United States, we’re cataloging 25 objects that define the country’s history. When the Ford Model T first hit the road in the early 1900s, it didn’t just change ...

Ford’s eight most senior employees each stamped one digit of the serial number of the 15-millionth Model T. Henry Ford and his son Edsel watched the historic moment. There’s more to Model T No. 15 ...