by various authors, A Dictionary of Greek and Roman Antiquities… (1890)
“ The name acclamationes was also given to the decrees passed by the senate in honour of the emperor, and to the congratulations addressed to him, inasmuch as these were always carried by acclamation. Under Trajan these were entered in the Acta, and engraved upon bronze. (Plin. Panegyr. 75, &c.; Capitol. Maxim. duo, 16, 26, Gordian. tres, 11; Lamprid. Alexand. Sever. 6-12; Vopisc. Tac. 4, 5, 7, Prob. 11.) Many instances of acclamationes are given by Ferrarius, De Veterum Acclamationibus et Plausu, in Graevius, Thesaur. ”
