The Geography of the Dispersal of Blondes around the World.

This map shows the most common hair colour in each region shown. As you can see, blonde hair is most common in Sweden and the surrounding areas, getting progessively darker in colour .Blonde hair is most common in scandinavian countries and around the Baltic sea. Blonde hair is often associated with lighter eye colours such as blue or light green.

Blonde hair has been said to have developed in scandanavia around the last iceage either due to a genetic mutation or selective breeding. it is thought that the blonde gene spread around Europe due to vikings on their travels and raids. 

The Fischer–Saller scale is a chart used to grade hair colour. This scale catagorises hair colour as either black, brown, blond, or red, with variations of each colour in each section. On the Fischer Saller scale, blonde hair ranges from the letters A-J.

Blonde is defined in the Oxford English Dictionary as simply having hair of a fair or pale yellow colour.

Blonde hair is determined by the levels of the pigment eumelanin. Natural blonde hair is very rare, and is thought to make up just 2% of the population.