100 years of photography. Daguerre, Niepce and Talbot

In 1939, all progressive mankind celebrates one of the great dates in the history of world civilization - a century of finding photos.
Holiday pictures century is primarily a celebration of human culture, which the heir is considered as the great Soviet people, develop all the achievements of world science and technology, carefully referring to all the achievements of world art, made all the greatest discoveries and inventions property of millions of workers.
In the essay "Daguerre, Niepce and Talbot," a biography of three remarkable men, whose names are closely connected, the invention of photography.