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 ...

Vietnam War soldiers used their helmets as canvases—covering them ... the 155-foot custom jet plane vice presidents use to travel the world Layoff announcements surge to the most since the ...