Some food for thought:

Technologic wonders and adventures: Jules Verne

1902 - 3 millions of telephones (US)

Dark industrial SF: H. G. Wells

1917 - World War I

Hero SF: John Carpenter of Mars, Buck Rogers

1929 - Economic crisis

Political SF: Foundation, Robert A. Heinlein

Technologic wonders and adventures: Star Wars

198x - Internet

Dark technologic SF: Cyberpunk

2001-2004 - Middle East war

Hero SF: Transformers, Ironman, Hancock

2008 - Economic crisis

Political SF?

Edit: Typos fixed.