Complex sentence: After the war, the states of Puebla, Mexico and Michoacán were persuaded to cede territory for a new entity and in 1849, President José Joaquín de Herrera decreed the establishment of the state of Guerrero, with Juan Alvarez as its first governor.
Split into simpler sentences: After the war, the states of Puebla, Mexico and Michoacán were persuaded to cede territory for a new entity. In 1849, President José Joaquín de Herrera decreed the establishment of the state of Guerrero, with Juan Alvarez as its first governor.