Celebrating holography anniversaries: a historical perspective

The year 2022 marks the 75th anniversary of Dennis Gabor?s invention of the holographic method, what he called microscopy by reconstructed wave-fronts, as well as the 60th anniversary of the publication in 1962 of two seminal papers in the field of holography: the introduction of the reflection hologram by Yuri Denisyuk, and the description of the holographic process from the point of view of communication theory by Emmett Leith and Juris Upatnieks. Within the framework of these celebrations, a historical review of the origins of holography is presented with special emphasis on the contributions of Gabor, Denisyuk and Leith to the development of holography.