Book VIII Print 17: May Day parade with peasant militias and Fidel Castro speechYale University. Department of Manuscripts and Archives1960 May 1engspaImages of the May Day rally and celebration held in Havana's Plaza Cívica on May 1, 1960. Top frames show the peasant popular militias as they march in formation, as well as Fidel Castro delivering his address to the assembled crowd several hours later.