1947-02-22 | Dr. Land demonstrated instant film process OPTICA

https://www.optica.org/optica_blog/2023/august/edwin_land_and_the_birth_of_instant_photography/

Land demonstrated his new camera and the instant photography process at the 1947 Optica (then OSA) Winter Meeting. In 1948, Polaroid launched the Land Camera on the market, with 57 units for sale. They sold out on the first day.