Thatâs capital delta (lower case is Î´), a letter of the Greek alphabet. It can be used in equations just like normal letters in a similar manner to x. It is usually used to represent: a difference. an angle.
Roosevelt also sought to convince the public that an international organization was the best means to prevent future wars. The Senate approved the UN Charter on July 28, 1945, by a vote of 89 to 2. The United Nations came into existence on October 24, 1945, after 29 nations had ratified the Charter.
The UN's headquarters are in NYC and the land on which it is built was 'donated' by David Rockefeller. The UN basically replaced the League of Nations which was brought into being with Woodrow Wilson pushing it at the end of WWI and it was officially founded as a result of the Treaty of Versailles in 19191920.