Particle News: September 19–21 Efemérides Highlight Mexico City’s 1985 Quake and Argentina’s ‘Nunca Más’

Overview

On September 19, 1985 a magnitude 8.1 earthquake struck Mexico City, destroying about one third of its buildings and killing more than 10,000 people, with strong quakes also recorded on the same date in 2017 and 2022.
On September 20, 1984 Argentina’s CONADEP delivered the ‘Nunca Más’ report to President Raúl Alfonsín, documenting 8,961 disappearances and more than 300 clandestine detention sites, a foundation for the subsequent Juicio a las Juntas.
On September 20, 1519 Ferdinand Magellan’s fleet departed Sanlúcar de Barrameda, launching the expedition that Juan Sebastián Elcano completed as the first circumnavigation of the globe.
On September 20, 1997 Soda Stereo closed its farewell tour with “El Último Concierto” at River Plate in Buenos Aires before roughly 65,000 fans.
On September 21, 1993 Russian president Boris Yeltsin dissolved Parliament and suspended the Constitution, triggering a constitutional crisis later deemed illegal by the Constitutional Court.