But in 1919, Edward D. Bullard of San Francisco, California developed the first hard hat, basing it on the Doughboy helmet he wore as a soldier in World War I. The helmet was made of canvas, glue, and ...

A helmet found among the artifacts from the ship ... The Sutton Hoo site was discovered in 1939, right before World War II began. At the time, many artifacts were unearthed, but it wasn't until ...

The famous helmet from the ship burial at Sutton Hoo ... just before the start of World War II. While Sutton Hoo yielded many artifacts, it wasn't until the 2003 discovery of the "Prittlewell ...