Complex sentence: The connection between "Pale Fire" and hypertext was stated soon after its publication; in 1969, the information-technology researcher Ted Nelson obtained permission from the novel's publishers to use it for a hypertext demonstration at Brown University.
Split into simpler sentences: The connection between "Pale Fire" and hypertext was established soon after its publication. In 1969, the information-technology researcher Ted Nelson obtained permission from the novel's publishers to use it for a hypertext demonstration at Brown University.