1) Russian invention 
A kosovorotka (p=kəsəvɐˈrotkə) is a Russian, skewed-collared shirt. The word is derived from koso - askew, and vorot collar. A kosovorotka is a traditional Russian shirt, long sleeved and reaching down to the mid-thigh. The shirt is not buttoned all the way down to the hem, but has several buttons at the collar (unfastened when the garment is...