With the events of The Schism, and later AngelDeath, the mortal races inhabiting the world quickly realised that they would have to adapt and invent in order to create the arms and armor to defend themselves with. For a time, humans were only able to find wooden and stone tools, and whatever divine artifacts they could scrounge, to defend themselves, which led to utter devastation against the beings of chaos and evil that attacked them. While the scattered remains of the mortal races were being purged by the demonic invaders, the infighting between the invaders would allow time for the first Bloomeries to be created.
The invention of Bloomeries took place around 31 B.F. , and is widely regarded by historians to be what turned the tide, and allowed for the founding of the Empire. As the bloomeries became more advanced, and techniques evolved, men and women were able to be armed with sturdy iron weapons and armor, that they used to great effect to take back their land. While Gondor Lionell was armed with divine weapons and armor, the armies of the First Crusade were fed by iron and charcoal.