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In 1905, Mogridge created the first crude protective head gear and was granted patent No. 780899 for a head protector.. This first attempt at a batting helmet was said to look like an inflatable boxing glove that wrapped around the hitters head..
There is some dispute about the first team to wear what we consider a baseball hat, but according to this article from Major League Baseball, the pioneers of the baseball hat were the Brooklyn Excelsior in about 1860.