There are 8000 linguistic systems in use today, about 90 calendars, a few hundred legal systems, a few hundred monetary systems, but Redditors fume at the thought that Planet Earth uses >1 convention for weights and distances
There are 8000 linguistic systems in use today, about 90 calendars, a few hundred legal systems, a few hundred monetary systems, but Redditors fume at the thought that Planet Earth uses >1 convention for weights and distances