(Updated) Rick Riordan Mythology Timeline

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On this page is the old timeline dating before the release of Magnus Chase and the Gods of Asgard: The Sword of Summer. This is for reference to show how important the clues in The Sword of Summer were.

  • 1993-07-12: Annabeth Chase was born
  • 1993-08-18: Percy Jackson was born
  • 1994-06-??: Carter Kane was born
  • 1996-03-17: Sadie Kane was born
  • 2000-07-12: Annabeth’s 7th birthday (Short story: The Diary of Luke Castellan)
  • 2000-??-??: Short story: The Diary of Luke Castellan
  • 2005-06-11 to 2005-08-05*: Novel: The Lightning Thief
  • 2005-06-21: Summer Solstice (Novel: The Lightning Thief)
  • 2005-06-21: Percy returned to Camp Half-Blood, a hero (Novel: The Lightning Thief)
  • 2005-06-28: His mother’s letter arrived a week after he got back to camp. (Novel: The Lightning Thief)
  • 2005-07-04: Fireworks display (Novel: The Lightning Thief)
  • 2005-07-04: Grover left to start his search for Pan (Novel: The Lightning Thief)
  • 2005-07-12: Annabeth’s 12th birthday
  • 2005-08-04*: Camp Half-Blood “last day” event (Novel: The Lightning Thief)
  • 2005-08-05*: A day after the summer camp “last day” event, they left
  • 2005-08-18: Percy’s 12th birthday
  • 2005-09-23*: Short story: Percy Jackson and the Stolen Chariot
  • 2006-06-08 to 2006-06-18: Novel: The Sea of Monsters
  • 2006-06-30: Short story: Percy Jackson and the Bronze Dragon
  • 2006-06-30: Charlie/Charles Beckendorf and Silena Beauregard started dating (Short story: Percy Jackson and the Bronze Dragon)
  • 2006-06-30: Annabeth asked Percy to be with her on the “biggest dating event of the summer” (Short story: Percy Jackson and the Bronze Dragon<)
  • 2006-06-30: The Hephaestus Bronze Dragon was found and activated on this day. (Short story: Percy Jackson and the Bronze Dragon)
  • 2006-07-04: Percy and Annabeth’s first date (Short story: Percy Jackson and the Bronze Dragon)
  • 2006-07-12: Annabeth’s 13th birthday
  • 2006-08-18: Percy’s 13th birthday
  • 2007-07-12: Annabeth’s 14th birthday
  • 2007-08-18: Percy’s 14th birthday
  • 2007-12-16 to 2007-12-21: Novel: The Titan’s Curse
  • 2008-03-17: Sadie’s 12th birthday (Novel: The Red Pyramid)
  • 2008-06-??: Carter’s 14th birthday (Novel: The Red Pyramid)
  • 2008-06-02 to 2008-07-02: Novel: The Battle of the Labyrinth
  • 2008-07-12: Annabeth’s 15th birthday
  • 2008-08-18: Percy’s 15th birthday (Novel: The Battle of the Labyrinth)
  • 2008-12-24 to 2008-12-29: Novel: The Red Pyramid
  • 2008-12-25: Short story: Percy Jackson and the Sword of Hades
  • 2009-03-16 to 2009-03-21: Novel: The Throne of Fire
    • Sadie found out Carter’s secret name
  • 2009-03-17: Sadie’s 13th birthday (Novel: The Throne of Fire)
    • Actually on a Tuesday, not Monday
  • 2009-06-??: Carter’s 15th birthday (Novel: The Throne of Fire)
  • 2009-07-12: Annabeth’s 16th birthday
  • 2009-08-11 to 2009-08-18: Novel: The Last Olympian
  • 2009-08-18: Percy’s 16th birthday (Novel: The Last Olympian)
  • 2009-08-18: Percy and Annabeth’s first kiss, and officially dated (Novel: The Last Olympian)
  • 2009-08-18: Luke died as a hero (Novel: The Last Olympian)
  • 2009-08-18: Alabaster was banished from the Olympian family (Short story: Son of Magic)
  • 2009-09-??: Hazel Levesque was rescued by Nico de Angelo from the Fields of Asphodel (Novel: The Son of Neptune)
  • 2009-09-18: Short story: Percy Jackson and the Staff of Hermes
  • 2009-09-18: Percy and Annabeth’s 1st monthsary
  • 2009-09-18 to 2009-09-23: Novel: The Serpent’s Shadow
    • “The other attacks all happened on the night of the new moon, when darkess is greatest. Believe me, he’ll hit your museum tonight. And he’ll hit it hard.”
      • New Moon on 2008-09-29 03:00 Dallas, Texas time — if we matched Sadie’s 13th birthday on a Monday
      • New Moon on 2009-09-18 13:00 Dallas, Texas time — fits perfectly with the novel
      • New Moon on 2010-09-08 17:30 Dallas, Texas time — if we use “The Crown of Ptolemy” as basis
    • “He looked about forty, but it’s hard to tell with magicians. He might have been four hundred.”
  • 2009-09-19: The Brooklyn Academy for the Gifted (Novel: The Serpent’s Shadow)
    • 19:00 Brooklyn time
    • Drew Tanaka and Lacy attends this school; both children of Aphrodite
    • Sadie Kane attends this school
    • Lacy has a crush on Carter
    • Lacy is a year younger than Sadie (12 years old)
    • Drew and Sadie hates each other
  • 2009-09-20 (Novel: The Serpent’s Shadow)
    • Sadie and Leonid portaled from Brooklyn to Cairo
    • Egypt is ahead by 7 hours from Brooklyn
    • “They will attack in three days,” Leonid said. “At the same time, Apophis will rise — at dawn on the autumn equinox.”
  • 2009-09-20: Setne’s trial in-front of Osiris (Novel: The Serpent’s Shadow)
  • 2009-09-23: September Equinox
    • 2008-09-22 07:44 EDT | 2008-09-22 14:44 Egypt — if we matched Sadie’s 13th brithday on a Monday
    • 2009-09-22 17:18 EDT | 2009-09-23 00:18 Egypt — fits perfectly with the novel
    • 2010-09-22 23:09 EDT | 2010-09-23 06:09 Egypt — if we use “The Crown of Ptolemy” as basis
  • 2009-12-14: Monday, Percy was abducted by Juno (Novel: The Lost Hero)
  • 2009-12-14: Monday, Jason was abducted by Juno (Novel: The Lost Hero)
  • 2009-12-17 to 2009-12-21: Novel: The Lost Hero
  • 2009-12-17: Jason, from Camp Jupiter, arrived at Camp Half-Blood without memories (Novel: The Lost Hero)
  • 2009-12-17: Piper and Leo arrived at Camp Half-Blood (Novel: The Lost Hero)
  • 2009-12-24*: Short story: Leo Valdez and the Quest for Buford
  • 2009-12-31*: The god of death, Thanatos was abducted in Alaska (Novel: The Son of Neptune)
  • 2010-03-20*: Short story: Son of Magic
  • 2010-05-??: Annabeth received her quest from Minerva (Athena’s Roman aspect) (Novel: The Mark of Athena)
  • 2010-06-??: Percy woke up at the Wolf House with the wolf goddess Lupa (Novel: The Son of Neptune)
  • 2010-06-19 to 2010-06-21: Novel: The Son of Neptune
    • Reyna, the Praetor of Camp Jupiter, confirmed that she and her sister Bellona (the Amazon Queen), first met Percy and Annabeth four years ago in a spa. This was during “The Sea of Monsters”, four years ago.
  • 2010-06-24: Percy received Leo’s message (Novel: The Son of Neptune)
  • 2010-06-25 to 2010-07-01: Novel: The Mark of Athena
  • 2010-06-25: Argo II arrived at Camp Jupiter (Novel: The Mark of Athena)
  • 2010-07-01 to 2010-07-18: Novel: The House of Hades
  • 2010-07-12: Annabeth’s 17th birthday
  • 2010-07-19 to 2010-08-01: Novel: The Blood of Olympus
  • 2010-08-18: Percy’s 17th birthday
  • 2010-08-18: Percy and Annabeth’s 1st year anniversary
  • 2011-03-17: Sadie’s 15th birthday
  • 2011-03-20: March / Spring Equinox
    • 19:21 EDT (US East Coast time)
    • First night for USA
  • 2011-03-20*: Short story: Percy Jackson and the Singer of Apollo
    • Annabeth was in San Francisco visiting her dad
    • It’s springtime (and spring break)
  • 2011-03-20*: Grover’s birthday (Short story: Percy Jackson and the Singer of Apollo)
  • 2011-03-20*: Apollo’s Olympus Concert (Short story: Percy Jackson and the Singer of Apollo)
    • After sunset, coinciding with the equinox
  • 2011-03-21: March / Spring Equinox
    • First day for USA
  • 2011-03-21*: Short story: The Son of Sobek
    • “I remembered El Paso, the winter before last, when my sister and I had been attacked by the crocodile god Sobek.”
      • More accurately as “the second winter before last”
      • This was during The Red Pyramid
    • Carter described Percy as “maybe 17”, Percy was 17
    • Crocodiles are most active during spring
    • Was from the perspective of Carter
    • Was released as part of “The Serpent’s Shadow”
  • 2011-04-21*: Short story: The Staff of Serapis
    • Annabeth’s invisibility cap was working again (it stopped during “The Mark of Athena”)
    • Was from the perspective of Annabeth
    • Was first released as part of “The Mark of Athena”
  • 2011-05-21*: Short story: The Crown of Ptolemy
    • Carter said Sadie found out his secret name “last year” – this was during “The Throne of Fire”
      • More accurately, two years ago.
    • Percy said “we just passed our one-year dating anniversary”
    • Percy said he’s “barely seventeen”
      • What he actually meanth was, he’s barely eighteen.
    • The crossover series were a month of each other, as Percy explained
    • This happened on a Saturday morning
    • Was from the perspective of Percy
    • Was announced during the tour of “The Blood of Olympus”
  • 2011-06-??: Carter’s 17th birthday
  • 2011-07-12: Annabeth’s 18th birthday
  • 2011-08-18: Percy’s 18th birthday
  • 2011-08-18: Percy and Annabeth’s 2nd year anniversary

* – Dates I took literary freedom. I looked for any significant date to mark this event.

    CC BY-SA 4.0 (Updated) Rick Riordan Mythology Timeline by Yuki (雪亮) is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. Permissions beyond the scope of this license may be available at Legal Notice.

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