1) Russian invention 
A Budenovka (p=bʊˈdʲɵnəfkə) is a distinctive type of hat and an essential part of the Communist uniform of the Russian Civil War and later conflicts. Its official name was the `broadcloth helmet` (шлем суконный). Named after Semyon Budyonny, it was also known as the `frunzenka` after Mikhail Frunze. It is a soft, woolen hat t...