Punjab was annexed into British territory in 1849 after the Second Anglo-Sikh War. The defeat of the Sikh Empire led to the signing of the Treaty of Lahore, officially bringing Punjab under British control. This marked the end of the independent Sikh Empire, which had been established under Maharaja Ranjit Singh.

Komagata Maru was the name of a ship that carried 376 Indian passengers, primarily Sikhs, seeking to immigrate to Canada in 1914. The ship was denied entry due to discriminatory immigration policies, leading to a significant event in the history of the Indian freedom struggle against colonial and racial injustice.

Maharaja Ranjit Singh built the Mal Moran Masjid for his Muslim wife, Moran Sarkar. The masjid, located in Punjab, reflects Ranjit Singh's respect and affection for Moran and his efforts to honor her faith.

Before receiving Guruship, Guru Angad Dev Ji, the second Sikh Guru, was known as Bhai Lehna Ji.