Complex sentence: This was innovative as the modern day footballing scene in Italy was in its embryonic stages: if not for Edoardo Bosio in Turin founding clubs, there would have been no football at all in Italy at Richardson Spensley's time of arrival.
Split into simpler sentences: This was innovative as the modern day footballing scene in Italy was in its embryonic stages. In fact, if it wasn't for Edoardo Bosio in Turin founding clubs, there would have been no football at all in Italy at Richardson Spensley's time of arrival.