When was the first children's press set up ? What were its effects?

A children’s press, exclusively devoted to children’s literature, was set up in France in 1857.
Effects:
(i) The press published new works as well as old fairy tale and folk tales.
(ii) Grimm brothers in Germany spentyears compiling traditional folk tales gathered from peasants. A collection of these stories was published in 1812.
Anything that was not suitable for children was not included in the published version for . children.
(iii) Rural folk tales acquired a new form. The children press thus created a new world of children’s literature entertaining thousands of young minds.