The UN:

1. After the Second World War, large scale unemployment, epidemics, crores of death and ruined economy shook the world.
2. The countries of the world finally realized a serious need to establish a world organization which would maintain peace and harmony in the world.
3. Owing to this need, United Nations Organisation (UNO) was established on 24th October, 1945. It was later renamed as United Nations.
4. The United Nations charter starts with the Preamble (i.e. Introduction) of the Constitution.

The Aims of the UN:

1. The UN makes a determination to save the future generation from destructive wars by preventing wars.
2. It emphasis that the countries of the world should obey international laws and move ahead with mutual understanding.
3. It also emphasis that the countries should develop tolerance towards other countries so that the whole world develops socially.
4. Economic, social and cultural problems should be solved with the help of United Nations. Human rights and basic freedom should be provided to all irrespective of their caste, language gender or religion.
5. The UN appeals to all the nations to co-operate with these objectives.