Fascinating fact of the day

As late as 1850, shoes were made on symmetrical lasts. Both shoes were identical. The concept of “left shoe” and “right shoe” did not exist. (Also, the plural in English was still “shoen” until the 1800s.) Mentioned in an article about T-shirts without the annoying tag that makes your neck itch. This kinda boggles my mind, like going to the art gallery and looking at all the paintings from around the time someone discovered perspective.