Social system where men primarily holds power in the   political and the private spheres

The social system where men primarily hold power in both the political and private spheres is known as Patriarchy. Here's a step-by-step explanation:

1. In a patriarchal system, men hold primary power and predominate in roles of political leadership, moral authority, social privilege, and control of property.

2. This system is historical and is seen in many cultures across the world. It involves the exclusion or minimization of women in various aspects of society, including politics and private decision-making processes.

3. In the political sphere, this can be seen where men make up the majority of positions in government, leadership, and other decision-making roles.

4. In the private sphere, men are often seen as the head of the household, with women typically having less authority.

5. Patriarchy also extends to societal norms and expectations, such as the expectation for men to be assertive, dominant and strong, while women are often expected to be more passive and nurturing.

6. However, it's important to note that many societies are moving away from patriarchal systems and towards more egalitarian structures, where power and responsibilities are shared more equally between genders.