This period, opening with the coming of Governor Marcelino de Oraá Lecumberri, and closing during the governorship of Rafael de Izquierdo y Gutierrez, is one of the most important and critical in the history of the Philippines. It witnessed the insurrection of Tayabas (1841) under the leadership of Apolinario de la Cruz (q.v., ante, pp. 92, 93); the use of steamships against the Moros (1848), whereby the Spaniards gained great advantage; approval for the Spanish-Filipino bank, August 1, 1851, with a capital stock of 400,000 pesos, and 2,000 shares of 200 pesos each, of which 1,000 shares were to be acquired by the obras pías and 1,000 were open to the public (the bank beginning operation in 1852); the reinstatement of the Jesuits (October 19, 1852; although the first band did not arrive until the middle of 1859), whereby education was given a slightly freer movement; [177] the famous educational laws of December 20, 1863, and other educational orders, decrees, and regulations (q.v., VOL. XLVI); the Spanish revolution of 1867-68, and the new constitution; the opening of the Suez Canal (November 17, 1869), by which communication with the mother-country was rendered quicker and easier, and liberalism given more decided tendencies; and lastly, the Cavite insurrection of 1872, which ended with the execution of three native secular priests. During this period there were in all fourteen regularly-appointed governors, and eleven provisional terms, in the latter, Ramon Montero y Blandino serving three times, and Joaquin del Solar twice--the average of each term (regular and provisional) being slightly over one year. This was comparatively a period of newspaper activity, about thirty newspapers being founded during these years. The entire period may be called the period of adolescence. Conditions in Spain were to a certain extent reflected in the islands. Confusion and uncertainty in the Peninsula had their counterpart in the colony. The administrational experiments of the Madrid officials extended to the government of the colonies, and there were many changes which vitally affected the Philippines. Some of the new laws were good; others show a greater or less ignorance regarding the islands. Throughout, however, the prevailing tone is one of greater liberalism. To be classed under foreign politics of the period were the laws regulating foreign commerce; the slight contact with the Dutch who appeared to be making overtures for a settlement in the Southern Islands; some negotiations with the celebrated Rajah Brooke; and the campaign of Cochinchina, in which the Spaniards aided the French.