A subject that will be of interest to many!
Pornography has always existed. The Greeks, Romans, Chinese, Persians and Indians invented porn. Sexual representations were engraved on the surface of temples as well as in books.
In the Middle Ages, pornography was taboo and hidden. In novels like those of Diderot or the Marquis de Sade, we find texts of a sexual nature, sometimes even violent.
It is after the first world war that the society is liberated and becomes more open. Pornographic literature begins to emerge. Photographs will come later.
It is in the 60s and 70s that the first porn films as we know them today will appear.
And then, over time, the arrival of the internet and social networks make it very easy to find porn "on every corner".