Newitz, The Future of Another Timeline 2020 – Adrian Tchaikovsky, The Doors of Eden 2021 – Laurent Binet, Civilizations (translated by Sam Taylor) Short Form 1995 – Stephen Baxter, "Brigantia's Angels" 1996 – Walter Jon Williams, "Foreign Devils" (in War of the Worlds: Global Dispatches) 1997 – William Sanders, "The Undiscovered" 1998 – Ian R. MacLeod, The Summer Isles 1999 – Alain Bergeron, "The Eighth Register" (translated by Howard Scott) 2000 – Ted Chiang, "Seventy-Two Letters" 2001 – Ken MacLeod, The Human Front 2002 – William Sanders, "Empire" 2003 – Chris Roberson, "O One" 2004 – Warren Ellis, The Ministry of Space 2005 – Lois Tilton, "Pericles the Tyrant" 2006 – Gardner Dozois, "Counterfactual" 2007 – (tie): Michael Flynn, "Quaestiones Super Caelo Et Mundo" & Kristine Kathryn Rusch, "Recovering Apollo 8" 2008 – Mary Rosenblum, "Sacrifice" 2009 – Alastair Reynolds, "The Fixation" 2010 – Alan Smale, "A Clash of Eagles" 2011 – Lisa Goldstein, "Paradise Is a Walled Garden" 2012 – Rick Wilber, "Something Real"' 2013 – Vylar Kaftan, "The Weight of the Sunrise" 2014 – Ken Liu, "The Long Haul: From the Annals of Transportation, The Pacific Monthly, May 2009" 2015 – Bill Crider, "It Doesn't Matter Anymore" 2016 – (tie): Daniel M. Bensen, "Treasure Fleet" & Adam Rovner, "What If the Jewish State Had Been Established in East Africa" 2017 – Harry Turtledove, "Zigeuner" 2018 – Oscar (Xiu) Ramirez and Emmanuel Valtierra, Codex Valtierra 2019 – Harry Turtledove, "Christmas Truce" 2020 – Matthew Kresal, "Moonshot" 2021 – Alan Smale, "Gunpowder Treason" Special Achievement 1995 – L. Sprague de Camp, lifetime achievement 1997 – Robert Sobel, For Want of a Nail 1999 – Randall Garrett, the Lord Darcy series 2018 – Eric Flint, for support of writers in the alternative history genre, most notably via the 1632 series References External links The Sidewise Award website Alternate history Alternate history fandom Awards established in 1995 Science fiction awards