Final answer:
Ancient Greece introduced the concept of democracy, while ancient Rome introduced the idea of a republic. Monotheistic religions have also influenced political ideas and ideologies.
Step-by-step explanation:
In ancient Greece, the concept of democracy was developed, which is still a widely used political idea today. Democracy is a system of government in which power is vested in the people, who have the right to elect representatives and participate in decision-making processes. This concept of democracy has influenced political systems in many countries around the world.
In ancient Rome, the idea of a republic was established. A republic is a form of government in which power is held by the people and their elected representatives, rather than by a monarch. This idea has also had a significant impact on modern political thinking and the establishment of democratic systems.
In Monotheistic religions, the belief in the equality of all human beings and the moral principles they espouse have greatly influenced political ideas and ideologies. Concepts such as justice, human rights, and the idea of a social contract between the ruler and the ruled can be traced back to these religious traditions.