Quaid-e-Azam Muhammad Ali Jinnah joined the All India Muslim League in the year 1913. This was a turning point in the history of the subcontinent and the Pakistan Movement.

Before joining the Muslim League, Jinnah was a member of the Indian National Congress and believed in Hindu-Muslim unity. However, over time, he realized that Muslims needed a separate political platform to protect their rights in British India.

By joining the Muslim League, Jinnah played a key role in transforming it into a powerful political party. He later became the leader of the League and led the struggle for a separate homeland for Muslims, which resulted in the creation of Pakistan in 1947.

Important facts:
- Year: 1913
- Party: All India Muslim League
- Role: Later became party president and led Pakistan Movement
- Impact: Strengthened the voice of Muslims in British India

Jinnah decision to join the Muslim League gave new direction to Muslim politics and laid the foundation for the creation of Pakistan.