The district was formed on 16 June 1969. Malappuram district is composed of portions of the former Palakkad and Kozhikode districts: Ernad taluk and portions of Tirur taluk in Kozhikode district, and portions of Perinthalmannna and Ponnani taluks in Palakkad district. In 1921 the present-day Malappuram district was part of the Moplah rebellions, followed by decades of stagnant economic, social and political development. In the early years of Communist rule in Kerala, Malappuram experienced land reform under the Land Reform Ordinance. During the 1970s Persian Gulf oil reserves were opened to commercial extraction, and thousands of unskilled workers migrated to the Gulf. They sent money home, supporting the rural economy, and by the late 20th century the region had First World health standards and near-universal literacy.