The major accomplishments of Charlemagne include developing the rules of the feudal system, encouraging reading and writing throughout his empire, developing commerce with a unified monetary system, and the unification of all Germanic peoples into a single kingdom through his crusades, which sought to convert all subjects to Christianity.<span>Charlemagne ruled Western Europe as its emperor from the period 768 to 814 in the Medieval age.</span>
The primary purpose of the Iroquois League was "<span>D. to bring independent nations together for mutual defense and common concerns", since European invaders had begun to seek more territory. </span>