American presidents are usually remembered for wars, elections, and major historical events. Less often discussed are the hobbies, obsessions, and intellectual quirks that made some of them surprisingly nerdy. This might come as a shock, but they were people, too, with their own dreams, aspirations, and ways to pass the time.Some filled entire rooms with books. Others spent their free time studying nature, inventing gadgets, or diving deep into specialized subjects. While ‘geeky’ means different things to different people, these commanders-in-chief all displayed a level of curiosity and enthusiasm that would feel right at home in a modern fandom.cnx.cmd.push(function() {cnx({playerId: "106e33c0-3911-473c-b599-b1426db57530",}).render("0270c398a82f44f49c23c16122516796");});WikipediaTheodore RooseveltTheodore Roosevelt may be history’s most energetic nerd. He obsessively studied wildlife, collected animal specimens, wrote dozens of books, and could discuss natural history for hours. Before becoming president, he was the kind of person who turned personal interests into lifelong scholarly pursuits.WikipediaThomas JeffersonJefferson’s interests seemed endless. He collected books, studied architecture, designed inventions, experimented with agriculture, and maintained one of the largest personal libraries in America. His curiosity about science, engineering, and knowledge in general makes him almost a stereotypical nerd.WikipediaJohn Quincy AdamsJohn Quincy Adams kept an incredibly detailed diary for most of his life, producing one of the most extensive personal records in American history. He was also deeply interested in astronomy and advocated for a national observatory.WikipediaJames GarfieldBefore becoming president, Garfield could write Greek with one hand and Latin with the other simultaneously. A lifelong scholar who loved classical languages and mathematics, he might be one of the most academically gifted presidents ever.WikipediaHerbert HooverMost people remember Hoover for the Great Depression, but he was also a highly accomplished mining engineer. He translated a medieval Latin mining text into English and remained fascinated by engineering and technical subjects throughout his life.WikipediaWoodrow WilsonWilson’s passion for political science bordered on obsession. Before entering politics, he was a respected academic who spent years writing and teaching about government. Few presidents approached politics with such a professor’s mindset.WikipediaJimmy CarterCarter’s engineering background and lifelong love of learning have defined much of his public image. Trained in nuclear engineering while serving in the Navy, he maintained a reputation for intellectual curiosity long after leaving office.WikipediaAbraham LincolnLincoln was largely self-taught and spent countless hours reading whatever books he could find. His fascination with mechanics even led him to receive a patent, making him the only U.S. president to hold one.WikipediaJohn AdamsJohn Adams had a lifelong passion for history, political philosophy, and classical literature. He exchanged thousands of letters with fellow intellectuals, especially Thomas Jefferson, debating everything from ancient governments to human nature with unmistakable scholarly enthusiasm.WikipediaBarack ObamaObama’s well-documented enthusiasm for comic books, science fiction, and fantasy literature sets him apart from many predecessors. He has openly discussed reading authors like Tolkien and has frequently embraced pop-culture fandoms in public.The post America’s 10 Geekiest Presidents, So Far as We Know appeared first on Den of Geek.