 During the next four decades, Mexico experienced impressive economic growth (albeit from a low baseline), an achievement historians call ""El Milagro Mexicano"", the Mexican Miracle.A key component of this phenomenon was the achievement of political stability, which since the founding of the dominant party, has insured stable presidential succession and control of potentially dissident labor and peasant sections through participation in the party structure.In 1938, Lázaro Cárdenas used Article 27 of the Constitution of 1917, which gave subsoil rights to the Mexican government, to expropriate foreign oil companies.