Who wore the kepi first?

The kepi, a type of cap with a flat circular top and a stiff visor, was first worn by French military officers in the early 19th century. It became popular during the Napoleonic Wars and was adopted by various military forces around the world. The design was influenced by earlier military headgear but became distinctively associated with the French army. Over time, the kepi has also been worn by various police and civil organizations.