By most socio-economic metrics, the thousand or so years of the Middle Ages was a pretty bad time to be alive. And if we focus on math, music, and philosophy, the Middle Ages were indeed dark compared to what came before and after. I don't understand how you can possibly think otherwise.They were. Most people are entirely ignorant about them because they read the version they're taught in schools, which they keep repeating like parrots to no end. But they were an age of steady, solid progress filled with advances in mathematics, architecture, music and philosophy that culminated with the invention of the press. And then things exploded from then on. It was the idiot Voltaire (who was rabid anti-christian) who coined the term Dark Ages to refer to the Middle ages. In order to properly understand them, one has to first learn what was before them, and what they supplanted.