However , due to World War II , the 1943 and 1945 national conventions were not held , and so the first National Intercollegiate Band was formed and gave a concert on the evening of Friday , March 7 , 1947 .
However , due to World War II , the 1943 and 1945 national conventions were not held , and so the next convention was held in 1947 . 
 The first National Intercollegiate Band gave a concert on the evening of Friday , March 7 , 1947 .