Question

why was their standard unit of measurement

Answer 1

This is because while the United States uses their own measurement units, the rest of the world uses metric measurement units. U.S. measurement units include measurements such as pounds, inches and gallons. Metric measurement units include measurements such as kilograms, centimeters and liters.

Answer 2

In early days there is no systems of any measurements,the people of that time face many problems.. but now a days a unit system is introduce to make the measurements of any length easy... it use to measures length and distance..