[1] It was originally named The Association of Incorporated Statisticians Limited, but this was later changed.
[1] The Institute of Statisticians attempted to obtain a royal charter of its own in 1978 and this led to discussions with the Royal Statistical Society about a possible merger.
Talks foundered over disagreement on how to arrange the various membership categories.
Within a few years, however, the talks were revisited, and on 1 January 1993, the two organisations merged, becoming simply the Royal Statistical Society.
[1] From 1950 the institute published a journal, first called The Incorporated Statistician (ISSN 14669404) then renamed The Statistician (ISSN 0039-0526) in 1962, before being subsumed into the Journal of the Royal Statistical Society as Series D upon the merger in 1993.