thumb|upright=1.15|The ruins of the Old Assyrian trading colony at Kültepe Assur was under the Puzur-Ashur dynasty home to less than 10,000 people and likely held very limited military power; no military institutions at all are known from this time and no political influence was exerted on neighboring cities. The city was still influential in other ways; under Erishum I ( 1974–1934 BC), Assur experimented with free trade, the earliest known such experiment in world history, which left the initiative for trade and large-scale foreign transactions entirely to the populace rather than the state.
thumb|upright=115|The ruins of the Old Assyrian trading colony at Kültepe Assur was under the Puzur-Ashur dynasty home to less than 10,000 people and likely held very limited military power; no military institutions at all are known from this time and no political influence was exerted on neighboring cities The city was still influential in other ways; under Erishum I ( 1974–1934 BC), Assur experimented with free trade, the earliest known such experiment in world history, which left the initiative for trade and large-scale foreign transactions entirely to the populace rather than the state.