Complex sentence: The National Association of Intercollegiate Athletics Men's Basketball National Championship has been held annually since 1937 (with the exception of 1944), when it was established by James Naismith to crown a national champion for smaller colleges and universities.
Split into simpler sentences: The National Association of Intercollegiate Athletics Men's Basketball National Championship has been held annually since 1937 (with the exception of 1944). The tournament was established by James Naismith to crown a national champion for smaller colleges and universities.