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 ... National Museum of American History ...

This helmet dates from 1649-1660 and is in the Continental or 'Dutch' pot style, sometimes called a Zischagge. It seems likely to have been worn by a Parliamentarian in the English Civil War as ...

These materials have become the standard for virtually all American fire departments ... of the fire fighter's neck. Helmet design really took off after World War II. By 1979, when NFPA issued ...