No, Dragons came first then humans. What humans invented was Naming. That's where our strength lies. Back in the Second World (the Age of Dragons) thing wielded immense power, using raw mana to bend reality to their will. However, in each case, the creature could only bend reality to the extent of their OWN will, not beyond it. When people invented Naming, every person could focus on one thing because it was uniquely named. While people had minimal effect when taken alone, the combined effects of thousands enabled them to surpass even the dragons. In the Fourth World (Earthdawn, Age of Heroes ?), Naming (Pattern Magic) grew into its full strength, imbuing things and places with power. Far worse than anything else we've done, when people abandoned their name for a number (SIN) we gave up the one thing we held over the Horrors.