1937 - John W. Campbell, Jr. became editor of Astounding Stories; he promptly changed the title to Astounding Science Fiction.
1951 - Isaac Asimov published the first book in the Foundation series.
1984 By Aldous Huxley is social sci-fi, a new subgenre
1993 - Octavia E. Butler published ''Parable of the Sower''
2007 -- Oxford University Press published what was said to be "the first historical dictionary devoted to science fiction": Brave New Words.
2012 - "Polar City Red" by Jim Laughter is a cli-fi subgenre novel set in a dystopian Alaska in 2075.
2013 - NPR broadcast a radio segment nationwide, arranged by freelancer producer Angela Evancie, about the rise of a new subgenre of sci fi dubbed ''cli-fi'' (for climate fiction)
2015 - Paolo Bacigalupi published "The Water Knife", part of a new sub genre of cli-fi sci-fi, focussing on clmate change stories.
2017 - Sci-fi legend Kim Stanley Robinson published ''NEW York 2140'', his first full-fledged cli-fi novel, set in, yes, 2140, about NYC under water, or at least half under water.
2020 -- MORE TO COME....
2050 - EVEN MORE TO COME.....