The way politics were a key achievement of the Golden Age of Islam was the system of law.
The system of law was basically a system that the people in the Golden Age of Islam created using the Qur’an to help base it. This system was used for the people to help apply the Qur’an to their everyday lives and the certain situations they had in their lives. This was a political achievement because it was their laws like the ones we have created in our society/century