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.
Formation of the United Nations. The United Nations was created October 24, 1945 shortly after WWII. With the war coming to a climax those who had faced off against the Axis powers never wanted a war of this scale to happen ever again. So these countries decided to meet in San Francisco in the April of that same year.