價格：免費
更新日期：2017-08-14
檔案大小：5.6M
目前版本：3.0
版本需求：Android 2.3 以上版本
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Helmets are among the oldest forms of personal protective equipment and are known to have been worn by the Akkadians/Sumerians in the 23rd century BC, Mycenaean Greeks since the 17th century BC, the Assyrians around 900 BC, ancient Greeks and Romans, throughout the Middle Ages, and up to the end of the 17th century by many combatants. Their materials and construction became more advanced as weapons became more and more powerful. Initially constructed from leather and brass, and then bronze and iron during the Bronze and Iron Ages, they soon came to be made entirely from forged steel in many societies after about 950 AD. At that time, they were purely military equipment, protecting the head from cutting blows with swords, flying arrows, and low-velocity musketry.
Skulls have been part of motorcycle culture for almost as long as there have been bikers. The image of a skull is synonymous with the dangerous and rebellious history that the motorcycle and riders alike share. It is a powerful symbol instantly recognizable.
