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a metal cap to protect the skull and a metal projection to guard the
nose, while the Crusader helmet completely enclosed the head in
metal. By the mid-15
th
century, once gunpowder made full helmets
all but useless, smaller helmets became popular like the sallet that
protected the head and neck (Figure 7.3). During the 17
th
through
18
th
century, metal helmets became more highly decorated with long
tassels of colored hair sticking out of a spike on the top. By the mid-
19
th
century most metal helmets had given way to cloth kepi caps, but
they were revived in the 20
th
century during the First World War as
a defense against machineguns ...