What was "Who's On First"? [WIP]

The timeless classic "Who's on First" was a skit, a bit, a routine – and those are language games. Were any real assertions about a guy named "Who" being made? What did that routine contribute to our knowledge of the world?

What was "Who's On First"? [WIP]
from "Abbott and Costello who's on first / visual representation" by yt/@Algerben3349