Rick Riordan’s Mythological Universe Timeline

When we belong to a fandom of an inter-connected universe, there is always in the back of our mind that how the different series are connected to each other, and when the different events take place. Many people who are new to the fandom often get confused. So, here I have compiled the timeline of all the Rick Riordan’s books in the shared universe. This includes books in Percy Jackson & the Olympians, The Kane Chronicles, Heroes of Olympus, Magnus Chase & the Gods of Asgard, Trials of Apollo, the crossover stories and the short stories.
 
Note: Rick Riordan clearly states that unlike Harry Potter, his books are not bound to specific years, and I respect his choice. After all, he created this world, so he gets to make these decisions. The years I use here are just to make things more clear, as it will be tougher to list out the events otherwise. The years I write are based on few of my assumptions and by keeping few clues in the books in mind. Also, I will not be listing out the events that took place within the book. 

COLOR KEY

Blue for Greek/ Roman events.
Red for Egyptian events.
Orange for Norse events.
Pink for the crossover events.
Green for Notes
 

TIMELINE

2000 BCE MILLENNIUM

Three (Four?) Thousand Years and Counting [A Part of Camp Half-Blood Confidentialtakes place.

32 – 30 BCE

Horus gets in touch with his Feminine Side [A Part of Brooklyn House: Magician’s Manual] takes place.

749

Helgi became the Manager of Hotel Valhalla.
Hunding became the Hotel Valhalla Bellhop. 

9TH CENTURY

865
Vikings invade East Anglia, England.
Halfborn Gunderson dies.


~1000

Apollo is banished to Earth as a mortal for the first time.

16TH CENTURY

Gunilla dies.

19TH CENTURY

1840 – 1871

A Hero and a Hammer [A Part of Hotel Valhalla: Guide to the Norse Worlds] takes place.

1860s

Greek Gods shift their base to US.
Pick Your Own [A Part of Camp Half-Blood Confidential] takes place. 

1863

July 18: Thomas Jefferson Jr. dies.

20TH CENTURY

1910

Gleeson Hedge is born.

1928

December 17: Hazel Levesque is born.

1930s

Nico diAngelo is born.
Bianca diAngelo is born.

1942

Hazel Levesque dies.

1950s

Apollo records an orientation film Welcome to Camp Half-Blood

1972

July 21: Mallory Keen dies.

1988

Grover Underwood is born.

1992

Luke Castellan is born.

1994

December 22: Thalia Grace is born.

1997

Charles Beckendorf is born.
Blitzen is born.

1998

Octavian is born.

1999

July 12: Annabeth Chase is born.
August 18: Percy Jackson is born.

21ST CENTURY

2000

Frank Zhang is born.
Rachel Elizabeth Dare is born.
Carter Kane is born.

July 1: Jason Grace is born.

2001

Piper McLean is born.
Leo Valdez is born.
Samirah Al-Abbas is born.
Alex Fierro is born.
January 13: Magnus Chase is born.

2002

Sadie Kane is born.

2005

November 24: Chase family met for Thanksgiving at Uncle Randolph’s house.

2006

Annabeth ran away from home.
The Diary of Luke Castellan [Short story in The Demigod Diaries] takes place.

2012

June – August: The Lightning Thief takes place.

2013

June: The Sea of Monsters takes place.
December 15 – December 21: The Titan’s Curse takes place.

2014

June to August 18: The Battle of the Labyrinth takes place.
July 4: The Bronze Dragon [Short story in The Demigod Files] takes place.
December 24 to December 29: The Red Pyramid takes place.

2014 – 2015

Between August 2014 & August 2015:
The Stolen Chariot [Short story in The Demigod Files] takes place.
The Sword of Hades [Short story in The Demigod Files] takes place.

2015

Natalie Chase is killed by wolves.
Samirah Al-Abbas became a Valkyrie.

March:
The Throne of Fire takes place.

August 11 – August 18:
The Last Olympian takes place.

August 18:
A Case of PPSS [A Part of Camp Half-Blood Confidential] takes place. 

September:
 The Serpent’s Shadow takes place.

September 18:
The Staff of Hermes [Short story in The Demigod Diaries] takes place.

Between Late August & November:

The Singer of Apollo [Short story in Guys Read: Other Worlds] takes place.
Space Could be an Issue [A Part of Camp Half-Blood Confidential] takes place.

December:
Hera abducted Percy & Jason.
The Lost Hero takes place.
The Quest for Buford [Short Story in The Demigod Diaries] takes place.

2015 – 2016

Between Late December 2015 & Early January 2016: Thanatos was kidnapped and taken to Alaska.

2016

My Sit-Down With Odin [A Part of Hotel Valhalla: Guide to the Norse Worlds] takes place.
My Chat with Freya [A Part of Hotel Valhalla: Guide to the Norse Worlds] takes place. 
Guess Who? [A Part of Hotel Valhalla: Guide to the Norse Worlds] takes place.
March: The Son of Magic [Short story in The Demigod Diaries] takes place.

Between April & Early June: Annabeth meets Minerva.
June 18* – June 24*: The Son of Neptune takes place.
June 25* – July 1: The Mark of Athena takes place.
July 10 – July 18*: The House of Hades takes place.
 
July 25 – August 1: The Blood of Olympus takes place.

Between August & December: 
Movie Night [A Part of Camp Half-Blood Confidential] takes place. 
Tongs a lot, Dad [A Part of Camp Half-Blood Confidential] takes place. 
Taking Inventory [A Part of Camp Half-Blood Confidential] takes place. 
A Peplos for Athena [A Part of Camp Half-Blood Confidential] takes place. 
The Ares Peacetime Challenge [A Part of Camp Half-Blood Confidential] takes place. 
Number 130 in Bunker Nine [A Part of Camp Half-Blood Confidential] takes place. 
Live and Learn . . . So You can keep Living  [A Part of Camp Half-Blood Confidential] takes place. 

Percy Jackson narrates Percy Jackson’s Greek Gods.
Percy Jackson narrates Percy Jackson’s Greek Heroes.


September:
The Son of Sobek takes place.
October: The Staff of Serapis takes place.
November: The Crown of Ptolemy takes place.
November or December: Muffin to the Rescue [A Part of Brooklyn House Magician’s Manual] takes place. **

2017

January: The Hidden Oracle takes place.
January 13 – January 21:
The Sword of Summer takes place.
 
February:
The Hammer of Thor takes place.
The Dark Prophecy takes place.

March: 
The Burning Maze takes place.

April 7 – April 9: The Tryant’s Tomb takes place.

May: The Ship of the Dead takes place.

After May:
9 from the Nine Worlds take place.

2017 or later

Sunu, Heal Thyself [A Part of Brooklyn House Magician’s Manual] takes place.
The Magicians at the 21st Nome compile Brooklyn House Magician’s Manual.

AFTER TRIALS OF APOLLO: THE TOWER OF NERO

On the outside looking in A Conversation via Videoconference with Sally Jackson and Frederick Chase [A Part of Camp Half-Blood Confidential] takes place. 
* These are made up dates to make the timeline easier to understand. The dates have been assigned approximately by the hints and lengths of events mentioned in the books.
** Sadie said ‘soon after saving the world’, so I’m assuming she means after Crown of Ptolemy and not Staff of Serapis.


The Following do not follow any timeline, thus have not been listed.

  • The Ultimate Guide
  • The Survival Guide
  • Demigods & Monsters
  • Hotel Valhalla: A Guide to the Norse Worlds [Except few events mentioned in the timeline.]
  • Camp Half-Blood: Confidential [Except few events mentioned in the timeline.]
  • Brooklyn House: Magician’s Manual [Except few events mentioned in the timeline.]
 
So, that’s all about the timeline of Rick Riordan books. Again I remind, the years are only  for making it easier to understand. Rick Riordan has asked not to bound his books to any year. I’ll update it with any new info we get or whenever a new book releases. You’re free to refer it when you re-read the franchise or while reading these for the first time. I hope this helped you. If you have any query or if I’m forgetting something, please let me know in the comment section.

11 Comments Add yours

  1. Autho R. says:

    Wow, dude. All events. WHOA, hats off man. I left this series after Heroes of Olympus.
    Now I wonder if I should start again, lol.
    But whoa, kudos dude. I can’t even imagine how much time this took.

    Liked by 1 person

    1. Aarnav Gupta says:

      Haha, thanks!
      I wrote it few years back, so I don’t really recall how much time it took. 😂 But I’ve been updating it ever since, as soon as I catch up with the latest entry.

      Liked by 1 person

      1. Autho R. says:

        That’s actually genius 😂

        Liked by 1 person

        1. Aarnav Gupta says:

          Lol, no. Nothing like that. 😂 Thankyou!

          Liked by 1 person

          1. Autho R. says:

            Ok, if you say so, hahah.

            Liked by 1 person

    2. Aarnav Gupta says:

      Post Heroes of Olympus, you should totally check out Magnus Chase series. It’s as good as the original Percy Jackson. Trials of Apollo, though isn’t as engaging, but the little hints about it in Magnus Chase, as they take place simultaneously, along with a lot of cameos, is fun to read.

      Liked by 1 person

      1. Autho R. says:

        Definitely going to try it out then

        Liked by 1 person

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