If gunpowder had never been invented, could Europe still have become the world's dominant continent?
If gunpowder had never been invented, could Europe still have become the world's dominant continent?
Not nearly to the same degree. This is largely from two factors:
1) Gunpowder weapons represented a dramatic improvement in killing power and psychological effect over previous weapons. Even if the Europeans had an advantage in terms of betters melee weapons and armor, it wouldn't be nearly as sizable an advantage.
2) Gunpowder and other explosives represent a dramatic advance in destruction per man, per pound, or per period of time. Per-gunpowder weapons just weren't the same. A Spanish galleon pulling up near a native city might have been imposing, but not NEARLY as imposing as one pulling up and shelling the palace to bits. Yes, in theory you could achieve a somewhat similar effect with catapults, but it would take MUCH longer and you could pack FAR less catapult power in a ship than firepower. A big galleon could mount a few large catapults/trebuchets, but it could fit dozens of cannons, each far more damaging than a catapult.
So, European weapons, tactics, and mobility could enable some conquests of less advanced people, but it would all be much slower and the ratio of casualties would be far less one-sided.