Complex sentence: They started from the bottom of the football pyramid in the local amateur divisions however they have been promoted every year since their existence, four promotions in a row and started the 2014/15 season in the IV liga, the fifth tier.
Split into simpler sentences: They started from the bottom of the football pyramid in the local amateur divisions. However, they have been promoted every year since their existence, four promotions in a row and started the 2014/15 season in the IV liga, the fifth tier.