In the 19th century, American firefighters had two ways of descending from their sleeping quarters to their horse-and-buggy conveyances on the ground floor: either by spiral staircase—installed to keep wayward horses from wandering upstairs—or through a tube chute, similar to the enclosed slides you see at playgrounds today. The stairs were cumbersome and the slides were slow, and in the 1870s, David Kenyon of Company 21, an all-African-American firehouse in Chicago, had an epiphany. Continue reading How a Black Fireman Brought a Pole Into the Firehouse