Well you didn't say how and why is it relevant specifically. So I don't quite get the point.

Everything partially led to everything. We might as well talk how the Persian - Roman wars led to the Spanish Inquisition as well.

I feel that you are being deliberately obtuse. It is pretty obvious how they are intertwined.

I actually spoke to a friend of mine who basically knows a huge amount of history (he is at University doing some sort Masters in a related subject), because some of the replies on this subject in sibling threads are so ignorant they actually gaslite me.