The charter of the United Nations Organization (U.N.O.) was signed by fifty nations at

Analyze the question: It asks where the UN Charter was signed by the original fifty nations.

Concept: The UN was formed after World War II to replace the failed League of Nations and maintain international peace and security. The United Nations Conference on International Organization was held in 1945 to draft the Charter.

Solution:

• The conference opened on 25 April 1945 in San Francisco, USA, with delegates from 50 nations.
• The Charter was signed on 26 June 1945 at the San Francisco Conference (at the Veterans War Memorial Hall).
• Poland, which was not represented at the conference, signed later, making 51 original members.
• The Charter came into force on 24 October 1945 after ratification by the five permanent Security Council members and a majority of other signatories. This is why 24 October is celebrated as United Nations Day.

Eliminating the other options:

• Beijing: never hosted the signing.
• Geneva: this was the headquarters of the League of Nations, not the site of the UN Charter signing.
• Moscow: the 1943 Moscow Declaration called for an international organization, but the Charter wasn't signed there.
• New York: this is the UN headquarters today, but the Charter was not signed there.

Answer: E. San Francisco

Tip: Remember "San Francisco = Signing" (both start with S), and "New York = Now headquarters." Also remember Geneva with the League of Nations.