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Weight units are essential in our daily lives and are used in a wide range of applications, from cooking and shopping to science and engineering. Different systems of weight units have emerged throughout history, and while some are now obsolete, several systems are still used in different parts of the world.
The International System of Units (SI) is the most widely used system of metric units. It's a decimal system, meaning each unit is a multiple or fraction of 10. The SI system was developed in France during the 18th century French Revolution and has since been adopted worldwide. The base unit of weight in the SI system is the kilogram.
The Anglo-American system, also known as the imperial system, is primarily used in the United States. This system has units like the grain, ounce, pound, and ton. Although the imperial system is less standardized than the SI system, it's still widely used in certain contexts, such as measuring body weight in pounds.
Some of the most commonly used weight units are: