Two early works escape being defined as hentai, but contain erotic themes. This is likely due to the obscurity and unfamiliarity of the works, arriving in the United States and fading from public focus a full 20 years before importation and surging interests coined the Americanized term "hentai". The first is the 1969 film "One Thousand and One Arabian Nights", which faithfully includes erotic elements of the original story. In 1970, "", was the first animated film to carry an X rating, but it was mislabeled as erotica in the United States.