Source: The Secret History of Hypertext
"When Vannevar Bush’s “As We May Think” first appeared in The Atlantic’s pages in July 1945, it set off an intellectual chain reaction that resulted, more than four decades later, in the creation of the World Wide Web.
In that landmark essay, Bush described a hypothetical machine called the Memex: a hypertext-like device capable of allowing its users to comb through a large set of documents stored on microfilm, connected via a network of “links” and “associative trails” that anticipated the hyperlinked structure of today’s Web.
Historians of technology often cite Bush’s essay as the conceptual forerunner of the Web. And hypertext pioneers like Douglas Engelbart, Ted Nelson, and Tim Berners-Lee have all acknowledged their debt to Bush’s vision. But for all his lasting influence, Bush was not the first person to imagine something like the Web..."