Amid the obvious axe you have to grind you lost sight of the facts. No bronze weapons = not yet bronze age.
The gunpowder age did not begin when China used it in fireworks, but when the Turks used it to bring down Constantinople.
The nuclear age began when the USA used nuclear weapons on Japan, not when Marie Curie discovered radium.
Egypt was in the stone age until the Hyksos invasion introduced them to bronze weapons. You may not like that fact, but there
You don’t understand the term “stone age”.
Gunpowder did not “bring down” Constantinople. The Ottoman’s canons were ineffective, and their mining operations were thwarted. Constantinople fell because the Ottoman’s were able to get their ships into the Golden Horm by rolling them over the land on greased logs and because the Ottomans had overwhelming numerical superiority.
Marie Curie did not discover Radium. Her husband AND she were credited with it. Pierre probably did most of the laboratory work because he died quite early as a result of exposure to radioactivity. Her later work isolating metalic Radium was done with Debierne.
Your post is so typical of the intellectually lazy on FR who will absorb whatever pablum is fed them on the “Hostory Channel” and in popular press.