Most of us may never touch a Major League base. They may appear somewhat soft and in fact they once were made of white painted canvas, filled with sand or saw-dust and loosely fastened by a metal spike underneath.
That all changed in 1939 when Jack Corbett, a retired minor leaguer who became a manager, thought that bases were too cushy & loose and developed a base with an anchor that to this day is the standard for Major League Baseball. A rigid base with tapered sides fastened atop a metal plate with a welded post that fits firmly into an underground receptacle. These bases stand up to the hardest slides but easily lift up and out for replacement... or passing around to fellow fans at your next "home game".