List of national legal systems
Common law is currently in practice in Ireland, most of the United Kingdom (England and Wales and Northern Ireland), Australia, New Zealand, Bangladesh, India (excluding Goa), Pakistan, South Africa, Canada (excluding Quebec), Hong Kong, the United States (on a state level excluding Louisiana), and many other places. In addition to these countries, several others have adapted the common law system into a mixed system. For example, Nigeria operates largely on a common law system, but incorporates religious law.
Common law
Edward Coke, a 17th-century Lord Chief Justice of the English Court of Common Pleas and a Member of Parliament, wrote several legal texts that collected and integrated centuries of case law. Lawyers in both England and America learned the law from his "Institutes" and "Reports" until the end of the 18th century. His works are still cited by common law courts around the world.