When you weigh something in Denmark, the result
will be in gram, and when you have more than 1,000 grams
you will use the word kilogram.
The definition was in 1790 in France based
on the weight of 1/1000 m³ of water
The system, which is a decimal system, came to Denmark in
1907, but still you can hear people using 'pund', which is
the same as a half kilogram.