Some hypertext history
Vannevar Busch’s MEMEX - 1945
T. Nelson ‘hypertext’ (XANADU) - 1965
Brown University - 1967, and 1985 ‘Intermedia: Dickens Web’ by Landow
GUIDE (Univ. of Kent) - 1986
HyperCard (Apple Macintosh) - 1987
HTML - Hypertext Mark-up Language 1990-1991