Artist Ward Shelley has produced another fine, fine, fine hand-drawn flowchart that will blow your mind: This time, it’s dedicated to the 2,500 years of intellectual history that have produced the modern sci-fi genre.

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Which sounds totally ridiculous, but just look at the chart and you’ll understand its beauty: Now, in lesser hands, the chart might have simply been a record of all the various strains of sci-fi as we know it. But Shelley is as much a historian as he is an artist, and he tracks the very first flowering of sci-fi to the Enlightenment’s fascination with science, which begat Mary Shelley’s Frankenstein, which begat Jules Verne:

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Shelley manages to encapsulate dozens of PhD’s in just that little bit of real-estate — just witness all the counter movements that attend the Enlightenment. But the chart continues with the same fanatical attention to detail and surpassing wit. Here, for example, is a detail show the subgenres that were birthed by sci-fi, but turned off to become their own. Fittingly, they disappear down wormholes: And here is the most decisive moment in creating sci-fi as we know it: The hothouse moment between the 1930s and 1950s, which saw H.G. Wells’s War of the Worlds and popular pulp fiction dedicated to ray-gun toting Martians:

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Eventually we come to modern sci-fi. And that’s is where things get really crowded. Here, for example, is cyberpunk and all of its great works: You’ll note that the closer an author is to the actual label, the more important a figure they are in founding that subgenre — so here, you get Neal Stephenson and William Gibson right at the heart. And here is the history of sci-fi in film, dominated, of course, by Star Wars:

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