1957: Rebel Terrorism intensifies

Cuba History Timeline Events
January 21, 1957
Terrorist violence intensified in January and February, both in the cities and against sugar plantations. Time reported on the escalating terrorism:

"Three nights out of six. explosions ripped the Havana air at exactly 8:30 p.m.. leading thousands to conclude that they had better stay home evenings. Apparently by plan, several bomb setters touched off blasts within earshot of the tourist-packed Hotel Nacional. In the eastern province of Oriente. where a few score irregulars (who last month invaded Cuba under Rebel Leader Fidel Castro) were still fighting from hideouts in the Sierra Maestra range, four small army garrisons were attacked. In the resulting fighting, 28 soldiers and insurgents were reported killed. And every day saboteurs up and down the island set new fires in fields of ripened sugar cane, Cuba's main source of income."

based on Manuel Márquez-Sterling's Cuba 1952-1959 and
Cuba 1952-1959 Interactive Timeline