CARACAS, Venezuela  The clock had just struck midnight. Most of the country was asleep. But that did not stop President Hugo Chávez from announcing in the early hours of July 16 that the latest phase of his Bolivarian Revolution had been stirred into motion.

Marching to the national anthem, a team of soldiers, forensic specialists and presidential aides gathered around the sarcophagus of Simón Bolívar, the 19th-century aristocrat who freed much of South America from Spain. A state television crew filmed the group, clad in white lab coats, hair nets and ventilation masks, attempt what seemed like an anemic half-goose step.

Then they unscrewed the burial casket, lifted off its lid and removed a Venezuelan flag covering the remains. A camera suspended from above captured images of a skeleton. Insomniacs here with dropped jaws watched live coverage of the Bolívar exhumation on state television, with narration provided by Interior Minister Tareck El Aissami.

For those unfortunate enough to have dozed off, there was always Twitter.

“What impressive moments we’ve lived tonight!” Mr. Chávez told followers in a series of Twitter messages sent during the exhumation that were redistributed by the state news agency a few hours later. “Rise up, Simón, as it’s not time to die! Immediately I remembered that Bolívar lives!”