It's been a while since I last read The Silmarillion, so some details might be wrong. The reason why Middle-earth did not have an industrial revolution is supernatural. When the Ainur sang the songs of creation, there was discord. Melkor, the mightiest of them, wanted to create something of his own, which was the root of all evil. The world they created was flawed. Within the world, the minds of those who seek to cre…
Presumably also the Numenoreans had it. The description of latter-day Numenor reads like they were technologically very advanced. The question is how far, but it seems fair to assume there was a sharp drop after the Fall because of the colonies not being self-sufficient enough to maintain their tech level. If we consider the stories in the Silmarillon to be handed down orally, the most advanced technologies could hav…
I doubt if they had “industry”; they probably had “advanced feudalism” with large capacity for shipbuilding and manufacturing arms. But that was because of the large continent and population. In a sense, its more similar to the Roman Empire.