Measurement in olden days

• People use to measure length by comparing them with the length of some of their body parts like hand, arm, foot or steps.

• Hand span, foot span, cubit, stride.

• Used stones of various sizes to weigh solid objects, and pots or containers of their own choice to measure the quantity of grains or liquids.

• They were not the same for all.

• Length of an object differed from person to person depending on length of their arms.

• Stones differed in weights and the sizes of containers used were also different.

• This led to confusion & quarrels between people.

• Hence there came the need to keep measure. They developed fixed measures to find out the quantity of different things.

• Fixed measures are called units, known as standard units of measurements.