Final answer:
The origins of length and distance measurements are based on human dimensions, and standardization efforts began in the 18th century.
Step-by-step explanation:
The origins of length and distance measurements are interesting and varied. Early measurements were based on human dimensions, such as the inch being the distance between knuckles on a finger and the yard being the span from the extended index finger to the nose of the British king.
Over time, the requirements of commerce led to some standardization of units, but each nation tended to set up its own definitions. It wasn't until the middle of the eighteenth century that real efforts were made to establish a uniform, international set of standards.
The history of lengths and distance measurements dates back to ancient times when units were derived from human dimensions. Early measurements such as the inch were based on the distance between the knuckles on a finger, while a yard was the span from the king's extended index finger to his nose.
Over time, the need for standardization arose from commerce, leading to various units being defined by different nations. It wasn't until the 18th century that efforts for international measurement standards began in earnest.