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.
International matrimonial law
There are 19 states that are parties the Convention, all of which are in Europe. Many states, including the United States, which is not a Contracting State to the Convention, recognize divorces obtained abroad through the above-mentioned legal principle of comity. The convention also applies to Hong Kong, to which it was extended before its transfer from the United Kingdom to China.