Taldor continued to grow and expand, but did not truly become an empire until the beginning of the Age of Reformation and the founding of the First Army of Exploration, a now-legendary collection of soldiers, scholars, diplomats, surveyors, spies, and adventurers. It headed north along the Kaku River from Tabat in 37 AR, conquering as far as what today is the city of Gonarzade in Gandarab.