During King Edgar the Peaceful's reign, he was able to bring stability and prosperity to England. He was able to achieve this through a combination of military campaigns and political maneuvering.

One of his major military accomplishments was the reconquest of the Danelaw, a region in northeastern England that had been controlled by the Vikings. He also fought against the Welsh and the Scots, and was able to expand the borders of his kingdom.

He also made significant efforts to reform the English Church, which had been weakened by years of Viking raids and invasions. He appointed Dunstan, a monk and a reformer, as the Archbishop of Canterbury and this helped to restore the power and prestige of the Church in England.

Additionally, he issued a law code which helped to bring order and fairness to the legal system of England. He also is believed to have encouraged the growth of monasteries and the development of monastic culture, which helped to preserve learning and culture in England during this time period.

Overall, King Edgar the Peaceful was successful in bringing stability and prosperity to England during his reign, and is considered to have been one of the most effective kings of the Anglo-Saxon period.

King Edgar the Peaceful was also known for his strong central government and his efforts to create a more unified kingdom. He is believed to have brought together the various Anglo-Saxon kingdoms under his rule, and to have established a strong centralized government. He also made efforts to improve the economy of England by promoting trade and commerce. He is believed to have encouraged the growth of towns and cities, and to have fostered the development of new industries and businesses.

In addition to his domestic achievements, King Edgar the Peaceful also played an important role in international politics. He formed alliances with other European monarchs, and is believed to have been a respected and powerful leader on the international stage.

King Edgar the Peaceful died in 975 AD, and was succeeded by his son Edward the Martyr. Despite his relatively short reign of 16 years, his achievements had a significant impact on the development of England, and he is remembered as one of the most effective kings of the Anglo-Saxon period.