Original sentence: The Nairs are known for their martial history, including the development of kalarippayattu and the role of their warriors in uprising against British from the Attingal riot of 1772 to the Naval Riot of 1946.The Nairs were classed as a martial race by the British, but were de-listed after rebelling against them under Velu Thampi Dalawa
Edited sentence: The Nairs are well-known for their martial history, including the development of Kalarippayattu and the role of Nair warriors in the uprise against British from '1721 Attingal riot" up to the 'Naval riot in 1946.The Nairs were classed as a "Martial Race" by the British, but were de-listed after rebelling against them under Velu Thampi Dalawa