/lit/ - Literature

>Thus held they funeral for Hector tamer of horses.

>>19786129
Guys please help.
There was an old novel I read when I was a kid, where some guy gets put on another planet by aliens who wanted to see what would happen. The guy winds up in fucking 5th century England, but aliens. The whole premise is that the guy walks around thinking he is going to become a liege lord using his 21st century knowledge, but then realizes he doesn't know how to make anything.
Please, I'm begging, does anyone know what book this is? I've searched everywhere, and cant find it. I remember the title had "Swift" in it, but that's it. It was the funniest thing I had ever read.