Four heritages from the bases for the majority of the legal systems of the world.
1. Common low: Common low derived from English law found in England, the United States, Canada and other countries once under English influence.
2. Civil or code law: Civil or code law , derived from Roman law and found in Germany, Japan, France and in non Islamic and non Marxist countries.
3. Islamic law: Islamic law derived from the interpretation of the Koran and found in Pakistan, Iran, Saudi Arabia and other Islamic states.
4. A commercial legal system: A commercial legal system is the Marxist socialist economies of Russia and the Republic of the former Soviet Union, Eastern Europe, china and other Marxist – socialist states whose legal system centered on the Economic, Political, and the social policies of the state.
As socialist countries become more directly involved in trade with non-Marxist countries it has been necessary to develop a commercial legal system that permits them to engage in active international commerce.