The Credit? (3)

There was still a problem. People didn't have units to measure the goods to have a mutual voice together. There was different units of measurements and in cases of same units, it varied a lot. For example, "a hand" as a unit, in some region was 10 cm, in other regions with bigger hands, 15 cm, etc. there was a need of standardization across the nations and all around the world. An International System (SI) was invented to standardize global units to measure goods and their criteria mutually, and in the regions people ignored the units, the unit was homogenized and made constant all over the region. For example, "Fahrenheit" instead of "Celsius" in countries like US.