After the revolution of 1789, French citizens sought uniform weights and measures throughout the nation ... It survives today as the metric system.

A description of the measures used for weight, length and volume in the past, such as cubits, spans, feet, grains of barley, stones and pints. The metric system was introduced to standardise ...

The metric system is used to measure the length ... or kilometres (km). Mass or weight is measured in grams (g) and kilograms (kg). Capacity is measured in millilitres (ml) ...