Legal systems of the world The contemporary national legal systems are generally based on one of four basic systems: civil law, common law, customary law, religious law or combinations of these. However, the legal system of each country is shaped by its unique history and so incorporates individual variations.[1] The science that studies law at the level of legal systems is called comparative law.
![List of national legal systems - Wikipedia](https://cdn-ak-scissors.b.st-hatena.com/image/square/a694b33a10f0f20a403e2c3d6cb4abc5889297fc/height=288;version=1;width=512/https%3A%2F%2Fupload.wikimedia.org%2Fwikipedia%2Fcommons%2Fthumb%2F0%2F0b%2FLegal_Systems_-_Global.svg%2F1200px-Legal_Systems_-_Global.svg.png)