Two things in the atlas are tied to this date. Each is placed here by a source that gives the day.
In the tradition of Hamelin in Germany, on 26 June 1284 a piper in colourful clothes led 130 of the town's children away and they vanished.
On the evenings of 26 and 27 June 1959, Father William Booth Gill and mission parishioners at Boianai, Papua, reported UFOs and human-like figures. A later study proposes bright planets seen through cloud.