sentences:  Apart from Berroetaveña himself, this group included Modesto Sánchez Viamonte, Carlos Zuberbüler, Carlos Videla, Emilio Gouchon, future president Marcelo T. de Alvear, Juan B. Justo, Manuel A. Montes de Oca, Tomás le Breton, and many others.At one of their assemblies they resolved to convoke a great meeting "to awaken the national civic life".On September 1, the great meeting was realized in Buenos Aires's Jardín Florida, attracting an audience of more than three thousand and the presence of the main opposition politicians.