Live Science on MSN14 天
Oldest firearms ever found in US were abandoned by Spanish in 16th-century battle against ...
Two cannons found at a site dating to 1541 in Arizona may be the oldest surviving firearms in the U.S. They were abandoned by ...
Smithsonian Magazine on MSN10 天
These 500-Year-Old Cannons May Help Unravel the Mysteries of the Coronado Expedition
The 16th-century artifacts were found during excavations in Arizona. Researchers say they may be the oldest firearms ever ...