Tatami (Japanese armour) the other related parts of a full suit of Japanese armour. Collapsible head protection such as "" and other collapsible armor are also "tatami" armor; a traditional kabuto could also be part of a tatami gusoku. Tatami armour was lightweight, portable, convenient for transportation, and they were manufactured inexpensively for the ashigaru light infantry. Tatami armours were worn by all samurai classes from the highest class to the lowest class. The higher class samurai wore elaborate armour while the lower class samurai and retainers wore simpler versions. In his book "Arms and Armor of the Samurai: The History of Weaponry
A Sixth Part of the World A Sixth Part of the World A Sixth Part of the World (, ), sometimes referred to as The Sixth Part of the World, is a 1926 silent film directed by Dziga Vertov and produced by Kultkino (part of Sovkino). Through the travelogue format, it depicted the multitude of Soviet peoples in remote areas of USSR and detailed the entirety of the wealth of the Soviet land. Focusing on cultural and economic diversity, the film is in fact a call for unification in order to build a "complete socialist society". A mix between newsreel and found footage, Vertov edited sequences