The Arsacid dynasty was a ruling family that governed the ancient kingdom of Parthia from the mid-3rd century BCE until the 3rd century CE. Founded by Arsaces I, the dynasty played a crucial role in the political landscape of the ancient Near East, often rivaling the Roman Empire. The Arsacids are known for their contributions to trade, culture, and military organization. Under the Arsacid rule, Parthia became a significant power, known for its cavalry and diplomatic relations. The dynasty's influence extended over a vast territory, including parts of modern-day Iran, Iraq, and Armenia. The Arsacid era is marked by a blend of Persian and Hellenistic cultures, which shaped the region's history.