 Complete the following phrase:  The most outstanding results of this cultural revolution centered at the AIBA appeared in the last two decades of the Empire through the work of Victor Meirelles, Pedro Américo, and, soon after, Almeida Júnior, Rodolfo Bernardelli, and Rodolfo Amoedo who formed part of the landscape group following in the footsteps of German Georg Grimm. Among the large number of artists during this period, Meirelles and Américo were the greatest of their generation, creating pieces that form part of collective national memory even today. Some of the many classic works include:  1861,  1879,  188283, Moema 1866, A Fala do Trono 1872, 