claim: Buffy the Vampire Slayer is created by Joss Whedon in 1990.
evidence: Joss Whedon -LRB- -LSB- ˈwiːdən -RSB- -RRB- -LRB- born Joseph Hill Whedon on June 23 , 1964 -RRB- is an American screenwriter , film and television director , film and television producer , comic book author , and composer .. He is the founder of Mutant Enemy Productions and co-founder of Bellwether Pictures , and is best known as the creator of the television series Buffy the Vampire Slayer -LRB- 1997 -- 2003 -RRB- , Angel -LRB- 1999 -- 2004 -RRB- , Firefly -LRB- 2002 -RRB- , Dollhouse -LRB- 2009 -- 10 -RRB- and Agents of S.H.I.E.L.D. -LRB- from 2013 -RRB- .. Mutant Enemy Productions. Mutant Enemy Productions. Bellwether Pictures. Bellwether Pictures. Buffy the Vampire Slayer. Buffy the Vampire Slayer. Angel. Angel ( 1999 TV series ). Firefly. Firefly ( TV series ). Dollhouse. Dollhouse ( TV series ). Whedon co-wrote the Pixar film Toy Story -LRB- 1995 -RRB- , wrote and directed the Firefly film continuation Serenity -LRB- 2005 -RRB- , co-wrote and directed the Internet mini-series Dr. Horrible 's Sing-Along Blog -LRB- 2008 -RRB- , co-wrote and produced the horror comedy The Cabin in the Woods -LRB- 2012 -RRB- , and wrote and directed the Marvel Cinematic Universe superhero films The Avengers -LRB- 2012 -RRB- and its sequel Avengers  : Age of Ultron -LRB- 2015 -RRB- .. Firefly. Firefly ( TV series ). Pixar. Pixar. Toy Story. Toy Story. Serenity. Serenity ( film ). The Cabin in the Woods. The Cabin in the Woods. Marvel Cinematic Universe. Marvel Cinematic Universe. The Avengers. The Avengers ( 2012 film )