The initial ideas for UNESCO to work on a project illustrating the collective memory of humanity were raised in 1946. Following the establishment of the International Scientific Committee and the formation of international teams to undertake the research, the first edition of this series, The History of Humanity - Scientific and Cultural Development, was completed in 1966. Over the following decades, with unprecedented developments in social and physical sciences and technological advances, the project was adapted and again readapted to properly reflect these changes.