Jnan Alvarez, a Mexican general, leader of the revolution which in 1855 drove Santa Anna from power, born about 1790, died in 1870. He was of Indian blood, and always exercised an extraordinary influence over the people of southern Mexico. Being governor of Guerrero in 1853, he had little difficulty in rousing his mountaineers to insurrection. The outbreak took place at Acapulco, at the beginning of the following year. In the decree promulgated by Alvarez, in March, 1854, which became noted as the plan of Ayutla, Santa Anna's deposition was officially announced, and republican institutions were proposed to the people. After Santa Anna's downfall, Gen. Carrera was intrusted for six months with the charge of the government, which, however, he relinquished in September in favor of Alvarez, whose nomination as president of Mexico was ratified by the assemblyof Cuernavaca, which for that purpose he had convoked himself on Oct. 4, 1855. On Nov. 15 he made his entry into Mexico, escorted by a body guard of Indians. His abolition of the privileges of the clergy and the army met with such opposition that he tendered his resignation, substituting in his place his former minister Comonfort, Dec. 11; and after procuring $200,000 from the national exchequer, and what arms and munitions he could get, he returned to southern Mexico.