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 United States and the Founding of the United Nations. (August 1941 - October 1945) United Nations: Table of Contents | UN & Israel | Security Council. The impetus to establish the United Nations stemmed in large part from the inability of its predecessor, the League of Nations, to prevent the outbreak of the Second World War.