Note: The following timeline is meant to represent the original series of films only. I tend to consider 'New Nightmare' and the reboot to be stand-alone projects. The following timeline is also largely guesswork with some research into other similar timelines, but there is no exact continuity to this series. Other sources may reinterpret it different ways, but this is how I see it.
- Birthday: Unknown date - Amanda Krueger
- Unknown date: Amanda Krueger becomes a nun under the name of Sister Mary Helena, and takes a job as a nurse at the Hathaway House for the Criminally Insane
- December: Amanda Krueger, as Sister Mary Helena, is accidentally locked inside the Hathaway House when it closes for Christmas Break. Approximately one hundred male mental patients rape her over this time, and she is left barely alive and with child.
- September: Frederick Charles Krueger is born after a breech birth, at the Hathaway House, to Amanda Krueger.
Mid 1940's to Late 1950's
- Throughout his school years, Freddy is teased and made fun of for his dark history. He is often referred to as the "Son of a Hundred Maniacs".
- Signs of psychological disorder appear in Freddy when he starts to kill small animals, including his class hamster
- Freddy murders his adopted father and gets away with it.
- Freddy marries a woman named Loretta
- Birthday: Unknown date - Kathryn Krueger
- Katheryn Krueger witnesses her father murder her mother
- Freddy is arrested for the murder of several children, and Katheryn is taken away
- Kathryn Krueger is adopted into the Burroughs family, and renamed Maggie.
- During Freddy's trial, it is revealed that the arrest warrant was left unsigned, and he is released through the technicality
- The parents of Springwood track Freddy down to his hideout and burn him alive, taking the law into their own hands.
- Freddy makes a deal with three Dream Demons who offer him a chance at revenge, by giving him the ability to continue killing through people's dreams.
- Amanda Krueger hears of Freddy's release and commits suicide by hanging in the chapel tower.
- Children create the eerie "1, 2, Freddy's coming for you" song to jump rope to, based on the real-life actions of Krueger.
- Unknown Dates: The events of 'A Nightmare on Elm Street' take place.
- Nancy Thompson is admitted to a psychiatric hospital for trauma after the events of 'A Nightmare on Elm Street. Over the years, she learns psychology and becomes an expert on dreams and dream activity.
- 1428 Elm Street goes up for sale.
- Unknown Dates: The events of 'Freddy's Revenge' take place.
- 1428 Elm Street is abandoned and boarded up.
- The remaining Elm Street children are committed to Westin Hills Psychiatric Hospital for violent nightmares and what appears to be self-harm.
- Nancy Thompson returns to Springwood, applies for an internship at Westin Hills, and is accepted.
- Unknown Dates: The events of 'Dream Warriors' take place.
- Unknown Dates: The events of 'The Dream Master' take place.
- Unknown Dates: The events of 'The Dream Child' take place.
- Alice and Jacob ('The Dream Child') move away from Springwood. Presumably, Alice was keeping Freddy at bay as the Dream Master, but once she leaves, Freddy comes back stronger than ever.
- Unknown Dates: The events of 'Freddy's Dead' take place
- Springwood rebuilds, and 1428 Elm Street is bought and remodeled to become to Campbell's home ('Freddy vs Jason')
- Freddy is a well-known entity now, but gets covered up upon learning that fear of him makes him stronger. All kids who have nightmares are sent to Westin Hills and put on the experimental drug Hypnocil.
- September: The events of 'Freddy vs Jason' take place