Which of the following events occurred before 1919?

Partition of Bengal

The correct answer is Option 4- Partition of Bengal

The Partition of Bengal occurred before 1919.

The other three events occurred after 1919:

• Gandhi-Irwin Pact: 1931
• Chauri Chaura Incident: 1922
• Lahore Session of Congress: 1929

The Partition of Bengal was a major event in the history of India. It was carried out by the British government in 1905, and it divided the province of Bengal into two parts: East Bengal and West Bengal. The partition was widely opposed by Indians, and it led to the rise of the Indian independence movement.