In 200 years, when readers are still enjoying, and analyzing, Stephen King's novels, this one might not be in the classics category, but it will be pretty damn close. For one thing, it's an intricate chronicle of fifty years of American history, both on the political stage, and on the streets. And for another it's an absolute page-turner, a gotta-find-out-what-happens-next thriller. A school teacher (I greatly prefer the schoolteacher protagonist to the more frequent novelist protagonist that has been showing up in King's books) finds a portal that takes him back to 1958. Rules are established (very important in time-travel thrillers) then our humble teacher decides to stop Harvey Oswald from killing JFK in 1963. Complications ensue. A great read.