A baseball relic older than the motion picture camera.
John Thorn, the official historian of Major League Baseball, compiled 12 images from 1875 and stitched together into GIF form. The star of the show is Hall of Famer George Wright, who played for the Boston Red Stockings in the early 1870s.
Here's the result:
We certainly have come a long way in 138 years.
Source: fangraphs.com