Two 16th-century cannons unearthed in Arizona may be the oldest firearms ever found in the United States, new research finds. Archaeologists found the cannons while excavating a site called San ...

This early 16th century cast iron, breech-loading cannon is the only one of its kind in Wales. It is designed to be carried on a ship of war and fired through a gun port on the side of the hull.

The cannon is a wall or rampart gun, designed to rest on the parapet of an adobe house, a tripod in the field, or — in a pinch — the fork of a tree. It weighs about 40 pounds, heavy by today’s ...