On March 13, 1877, Chester Greenwood of Farmington, Maine was awarded a patent for the earmuff.

According to the National Calendar Day website:

After a day of ice skating in the cold, 15-year-old Chester came up with an idea to keep his big ears warm. Partnering with his grandmother who sewed tufts of fur between loops of wire, Chester soon had a working model.

The rest as they say... is history!

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