While many fans developed intricate theories as to the significance of Jess and Dean sharing a birthday, Eric Kripke has stated that he chose the date because it is his wife's birthday.
- Sam Winchester (1983)
In a bizarre coincidence, Eric Kripke's son was also born on this date in 2007.
- Mary Campbell makes a deal with Azazel (1973)
- Sam Winchester dies. Dean Winchester makes a deal to bring him back (2007)
- Dean Winchester's deal is up. He dies (2008)
- Adam Milligan (1990)
This day is also the traditional day for Michaelmas, the feast of Saint Michael the Archangel, for whom Adam eventually served as a vessel.
Sam Winchester is six months old on this day.
This chart is predicated on the belief that the year Supernatural first broadcast is the first year in the Winchester story. It gives only a rough approximation of internal and external chronologies.
|Year||Season||Major Story Arc||Major Villain(s)|
|2005/06||1||Search for Dad / Kill the Demon.||Meg / The Demon|
|2006/07||2||Sam’s visions||The Yellow-Eyed Demon|
|2007/08||3||Dean’s damnation / Demon hunting.||Lilith|
|2008/09||4||Stopping Lucifer's rise.||Lilith / Ruby / Zachariah|
|2009/10||5||Resist destiny / Look for God.||Lucifer / Zachariah|
|2010/11||---||Dean’s with Lisa & Ben Braeden / Sam’s hunting with Samuel Campbell|
|2011/12||6||Souless Sam / Search for Purgatory||Castiel / Crowley / Eve / Raphael|
|2012||7||Fight the Leviathans||Dick Roman / Leviathans|
|2012/13||---||Dean’s in Purgatory / Sam’s with Amelia Richardson|
|2013||8||Translate the demon tablet / Close the Gates of Hell.||Crowley / Naomi|
|2013/14||9||Sam and Dean's relationship / Human Castiel / Fallen angels / Mark of Cain / Finding the First Blade.||Abaddon / Metatron|
|2014/15||10||Demon Dean / Removing the Mark of Cain / Crowley's mommy issues|
|2016||11||Dean's connection to Amara.||The Darkness|
|2016/17||12||Mary's resurrection / British Men of Letters / Birth of Lucifer's son||Lucifer / Princes of Hell|
|2017/18||13||Jack Kline / Apocalypse World||Asmodeus / Lucifer / Michael|