Sure, here is a timeline of the history of Hentai:

18th Century:

The origins of Hentai can be traced back to Japan during the Edo period (1603-1868). At this time, Japanese art was heavily influenced by Chinese culture, and many artists began incorporating elements of eroticism into their work. This included depictions of sexual acts between men and women, as well as homosexual relationships. These works were often kept hidden from public view due to strict censorship laws at the time.

Late 19th Century:

As Japan modernized and opened up to the outside world, new forms of entertainment emerged. One such form was “shunga,” which was a type of woodblock print that depicted scenes of sexuality. Shunga became popular among both men and women, and it was not uncommon for couples to purchase shunga prints together as gifts or souvenirs.

Early 20th Century:

In the early 20th century, Japan experienced rapid industrialization and urbanization. As a result, new forms of media emerged, including manga and anime. While these mediums initially focused on action and adventure stories, they soon began to incorporate elements of sexuality as well. This included depictions of sexual acts between men and women, as well as homosexual relationships.

Mid 20th Century:

During World War II, Japan’s occupation by American forces led to a crackdown on pornography and other forms of adult entertainment. However, after the war ended, Japan began to rebuild itself as a democratic nation. With this newfound freedom came a resurgence of interest in sexuality and erotica, leading to the emergence of a thriving market for Hentai.

Late 20th Century:

In the late 20th century, Hentai began to gain popularity outside of Japan. This was largely thanks to the rise of the internet, which made it easier than ever before for people around the world to access Hentai content. In addition, the development of new technologies allowed for more detailed and realistic depictions of sexuality in Hentai, further contributing to its growing popularity.

21st Century:

Today, Hentai has become one of the most popular forms of adult entertainment in the world. It encompasses a wide range of genres, including romance, fantasy, sci-fi, and horror. There are also numerous subcultures within the Hentai community, each with its own unique style and aesthetic. Despite ongoing controversies surrounding the legality and morality of Hentai, it continues to evolve and grow, reflecting changing attitudes towards sexuality and erotica in society.