Final answer:
Muammar Gaddafi was the ruler of Libya and played an important role during the Arab Spring. He faced widespread protests and uprisings, which eventually led to his removal from power.
Step-by-step explanation:
Muammar Gaddafi was the ruler of Libya from 1969 until his death in 2011. He came to power by overthrowing the king and ruled with an authoritarian regime that limited personal freedoms and democratic reforms. During the Arab Spring, Gaddafi's regime faced widespread protests and uprisings, leading to a civil war in Libya. Gaddafi's removal from power and the subsequent changes in Libya marked a significant moment in the Arab Spring movement.