Complex sentence: During this period the swastika became deeply stigmatized, however the fasces did not undergo a similar process, apparently due to the fact that prior to Mussolini, it had already been incorporated within the governmental iconography of many governments outside of Italy.
Split into simpler sentences: During this period the swastika became deeply stigmatized, however the fasces did not undergo a similar process. This was apparently due to the fact that prior to Mussolini it had already been adopted and incorporated within the governmental iconography of many governments outside of Italy.