The first issue of Billboard magazine was published on this date back in 1894. That date surprised me, because I associate Billboard with music charts, mostly rock and pop.
It turns out that Billboard started out as "Billboard Advertising" magazine, a trade magazine for the advertising industry published from Cincinnati, Ohio. A few years later it began to carry news about circuses, amusement parks, and fairs, because they were major purchasers of billboard advertising space. Billboard didn't begin publishing music charts until the 1930s, and didn't devote itself entirely to music until 1961. It ceased publication in 2006.