The journal was established in 1894 by Edward Mann Langley[2] as the successor to the Reports of the Association for the Improvement of Geometrical Teaching.[3]William John Greenstreet was its editor-in-chief for more than thirty years (1897–1930).[4] Since 2000, the editor is Gerry Leversha.
Editors-in-chief
The following persons are or have been editor-in-chief:[5]