Step 1: Establishment of the Muslim League.
The All-India Muslim League was established in 1906 at Dhaka. It was formed to represent the political rights and interests of Muslims in India and later became an important political organization during the freedom struggle.
Step 2: The Surat Split.
The Surat Split took place in 1907 during the session of the Indian National Congress at Surat. The Congress divided into two groups: the Moderates and the Extremists, due to disagreements over methods of achieving independence.
Step 3: The Lucknow Pact.
The Lucknow Pact was signed in 1916 between the Indian National Congress and the Muslim League. It represented a significant moment of Hindu–Muslim unity during the freedom struggle and demanded greater self-government for India.
Step 4: Chronological order.
Since the Muslim League was established in 1906, the Surat Split occurred in 1907, and the Lucknow Pact was signed in 1916, the correct chronological order is:
\[
3 \rightarrow 2 \rightarrow 1
\]
Final Answer: 3-2-1.