Original: 1945 & ndash ; By a vote of 65 to 7 , the United States Senate approves United States participation in the United Nations ( the UN was established on October 24 , 1945 ) .
Simplified: 1945 - By a vote of 65 to 7 , the United States Senate approves United States participation in the United Nations ( the UN was established on October 24 , 1945 ) .