Four things in the atlas are tied to this date. Each is placed here by a source that gives the day.
A ghost said to walk Raynham Hall in Norfolk, known from 19th-century sightings and from a 1936 Country Life photograph of a veiled figure on the stairs.
Betty and Barney Hill, a couple from Portsmouth, New Hampshire, said aliens abducted them in the White Mountains in September 1961. The New York Times credits their story with a national fixation on alien abduction.
Early on 19 September 1976, people in Tehran reported a bright light overhead, and Iranian Air Force F-4 jets were sent up to intercept it.
The body of a man found in the ice on the Austria-Italy border by two German hikers in September 1991. German and Italian media later wrote of a curse on people linked to the find.