This brought about an increase in slave revolts, specifically in the 1860s and 1880s, which forced the government to alter the technique to keep the place steady.[thirteen] Slavery was legally abolished in 1888. Brana Itaipu, najveća svjetska hidroelektrana prema proizvodnji energije i druga najveća po instaliranom kapacitetu (fourteen 000 MW) https://pcildaye.elbloglibre.com