Blue is the most popular color in the world, it associate with right and wisdom . Many uniforms are in blue, In Greece, form the myth of Roman , blue is the color of numen of sky.

In the Old Testament, it stands for god .Moslemism like blue and viridescence, mosque around country are in blue. Blue stands for truth peaceful and cooperation. It is the main color of the UN and European flags.

The UN has its own post office and stamps, you can post cards to all the country in the world by its stamps. This is where I send the new years card to you with my personal stamps.