1. Invaded England: William's most famous achievement was the conquest of England in 1066. He crossed the English Channel with a large army and defeated the Anglo-Saxon forces led by King Harold II at the Battle of Hastings. This victory marked the beginning of the Norman rule over England.
2. Established Feudal System: William introduced the feudal system in England, a hierarchical social and administrative system based on land tenure and mutual obligations. He granted vast areas of land to his nobles and knights in exchange for their military service and loyalty, creating a centralized authority.
3. Domesday Book: He ordered the compilation of the Domesday Book, a detailed survey of much of England and parts of Wales. The book provided valuable information on the landholdings, resources, and population of England, serving as a critical administrative and fiscal resource for the crown.
4. Legal and Judicial Reforms: William introduced significant legal and judicial reforms, including the establishment of royal courts and the appointment of itinerant justices. These reforms improved the administration of justice and centralized royal power.
5. Royal Charters: William issued royal charters to towns, granting them certain privileges and freedoms. These charters contributed to the growth of towns and encouraged trade and economic development.
6. Church Reforms: William maintained a close relationship with the Catholic Church and supported its reform movements, such as the Gregorian Reforms. He asserted royal control over ecclesiastical appointments and promoted religious unity.
7. Campaigns and Revolts: Throughout his reign, William faced rebellions and challenges to his authority both in England and his continental territories. He successfully quelled uprisings and maintained his hold on power.
8. Personal Characteristics: William was known for his political cunning, military prowess, and administrative abilities. He was a formidable ruler who established a strong and stable monarchy in England.
9. Legacy: William's conquests and policies had a lasting impact on English society, government, and culture. He laid the foundation for the centralized and powerful English monarchy that endured for centuries.