While profiting from experience from abroad, Britain was very protective of domestic technology. In particular, engineers with skills in building textile factories and machines were not allowed to emigrate - particularly to newborn America. However, Samuel Slater, an engineer who had worked as an apprentice for Arkwright's partner, Jedediah Strutt, avoided the ban. In 1789, he took his skills in designing and building factories to New England and soon engaged in reproducing the textile factories that helped America with its own industrial revolution. Local inventions followed. In 1793, Eli Whitney invented and patented the cotton gin, which accelerated the processing of raw cotton by more than 50 times a pound a day.
Kokomi Teruhashi (照橋心美, てるはし ここみ lit. Teruhashi Kokomi) is one of the main characters of the series. She is a student in Saiki Kusuo's class and she is considered very attractive by both women and men, who often stop and stare upon seeing her.
It can't be black plague because the pictures really have nothing to do with that. I think nobles playing games/feasting is too vague. I think it would have to be the history of Norman conquest of England. I hope this helps! IGNORE THIS! READ BOTTOM!