Concepts of legal entities have developed and changed throughout history, and special emphasis was placed on the development of natural and legal persons, their characteristics and legal affairs. In ancient civilizations, such as Roman and Greek, natural persons were recognized as legal subjects with certain rights and obligations. The paper emphasizes the essential characteristics of natural and legal persons, as well as their capacities, including legal, business and tort capacity. Grading will be specified within business ability. Tortious capacity is the capacity of a person, both physical and legal, to be responsible for the damage he causes. An essential capacity that will be mentioned in the case of natural persons is testamentary capacity. Legal entities have also evolved throughout history. With the development of capitalism and industrialization, legal entities gained more importance. Today, legal entities include various organizations such as corporations, foundations, etc. The paper describes the basic theories that have been created about legal entities. It also mentions the creation and termination of legal entities, which is of great importance for civil law.