America signed a metric treaty

Yes, you read that right. The bulwark of the dated and confusing Imperial system actually signed the treaty in ~1880 which metric countries signed to agree on the metric system. The United States intended on converting to the metric system. Instead we have a beautiful system where all of our units are metric units and a conversion factor.

If you haven’t seen the complexity of the Imperial system in all of its glory yet, check out this wikipedia image.

By 42CrMo4, Christoph Päper - English length units graph (PNG), CC BY-SA 4.0, Link

I found this by stumbling on an old youtube video by Veratasium which is linked here Pretty neat!