1) Samurai pole weapon 
==History== Early yari are believed to have been derived from Chinese spears, these hoko yari are thought to be from the Nara period (710-794)., and while they were present in early Japan`s history, the term yari appeared for the first time in written sources in 1334 but this type of spear did not become popular until the late 1400s. The original....
spear
Lance, spear.
Spear. Futamoto yari
Spear.
The Yari was typically 5 feet long with a 6 inch blade and the handle often contained a hidden chain or knife. 
Yari is a Hebrew name for boys and girls. The meaning is `strive, fight` The name Yari is most commonly given to Flemish girls. (50 times more often than to American girls.) In Flanders, the Netherlands, Belgique and Italia it is (almost) solely given to boys