This brought about a rise in slave revolts, particularly in the 1860s and 1880s, which compelled The federal government to alter the program to maintain the region secure.[13] Slavery was lawfully abolished in 1888. Brana Itaipu, najveća svjetska hidroelektrana prema proizvodnji energije i druga najveća po instaliranom kapacitetu (14 000 https://nbcatiaew.blogdon.net