October 20

The Hungarian Revolution began on October 23, 1956, as a student-led protest in Budapest that quickly became a nationwide uprising against Stalinist rule. While Budapest saw the largest fighting and greatest loss of life, towns such as Mosonmagyaróvár and Esztergom in northwestern Hungary experienced their own violent confrontations, reprisals, and contested acts of summary justice. This piece traces the arc from the long build-up of repression to the weeks of October–November when local councils rose, ÁVH units were seized, and, amid the confusion of retreat and Soviet return, civilians were shot, arrested, or executed — all against a backdrop of fragmentary records, survivor testimony, and decades of silence.

On October 16, 1964, in the salt flats of Lop Nur in eastern Xinjiang, the People’s Republic of China detonated its first atomic device — an implosion‑type plutonium bomb with an estimated yield of about 22 kilotons — announcing itself as the world’s fifth nuclear power and reshaping regional and global strategy.

On October 9, 1995, a major undersea earthquake off the coasts of Colima and Jalisco — centered near the port of Manzanillo — produced strong shaking, a damaging tsunami along nearby shores, dozens of deaths, hundreds of injuries, and widespread disruption to coastal communities. The quake reinforced lessons from Mexico’s 1985 disaster and pushed further improvements in monitoring, codes, and coastal preparedness.