Complex sentence: The first official meeting of what came to be known as the European Commission was held in Budapest on 7 January 1934: the organization of the first European Athletics Championships, which had already been discussed, was officially awarded to Turin.
Split into simpler sentences: The first official meeting of what was later to be known as the European Commission, was held in Budapest on 7 January 1934. The organization of the first European Athletics Championships, which had already been discussed, was officially awarded to Turin.