Fustibalus

A sling is a projectile weapon typically used to throw a blunt projectile such as a stone, clay, or lead "sling-bullet". It is also known as the shepherd's sling. Someone who specialises in using slings is called a slinger.

A sling has a small cradle or pouch in the middle of two lengths of cord. The sling stone is placed in the pouch. The middle finger or thumb is placed through a loop on the end of one cord, and a tab at the end of the other cord is placed between the thumb and forefinger. The sling is swung in an arc, and the tab released at a precise moment. This frees the projectile to fly to the target. The sling essentially works by extending the length of a human arm, thus allowing stones to be thrown much farther than they could be by hand.

The sling is inexpensive and easy to build. It has historically been used for hunting game and in combat. Film exists of Spanish Civil War combatants using slings to throw grenades over buildings into enemy positions on the opposite street. Today the sling is of interest as a wilderness survival tool and an improvised weapon.

The sling is an ancient weapon known to Neolithic peoples around the Mediterranean, but is likely much older. It is possible that the sling was invented during the Upper Paleolithic at a time when new technologies such as the spear-thrower and the bow and arrow were emerging. With the exception of Australia, where spear throwing technology such as the woomera predominated, the sling became common all over the world, although it is not clear whether this occurred because of cultural diffusion or independent invention.

Whereas sling-bullets are common finds in the archaeological record, slings themselves are rare. This is both because a sling's materials are biodegradable and because slings were lower-status weapons, rarely preserved in a wealthy person’s grave.

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Wikipedia