In 1066, the Norman conquest of England brought with it many changes in the law. While much of Anglo-Saxon law was kept, new laws were added over time by the Normans. Before the Norman invasion, most laws in England were local laws and enforced by local courts. Royal courts were introduced They did not take over local laws right away, but did so over a period of time. The royal courts took the best of the local laws and used them throughout England. This established English common law, or a system of laws "common" to the entire country. By this time a second court system developed known as equity and administered by the Court of Chancery. Equity addressed situations not covered by common law. Examples of equity decisions include imposing a lien, correcting a property line or ordering someone to do something to prevent damage. 