An ancient Roman cavalry helmet discovered in 2001 will go on display in the U.K., museum officials said. This is the replica. Photo from the Harborough Museum, Leicestershire, UK Two decades ago, a ...

Ask the average armchair historian when the modern steel military helmet was introduced, and they’re likely to answer that it was the First World War that the helmet made a return to the battlefield.

Here’s What You Need to Know: The steel helmet has a long history. Ask the average armchair historian when the modern steel military helmet was introduced, and they’re likely to answer that it was the ...