User:Rej Maddog/Sandbox/TimeBoxen

This timeline attempts to place the events mentioned in the Girl Genius story in internal chronological order.

Methods and Assumptions

 * 1) Sources:  An attempt has been made in each event description to include a link to the source of the dating information.
 * 2) "Relative Dates": This column places events relative to two seminal events: the attack that destroyed Castle Heterodyne (which is assigned Year 0, Day 0) and the start of the main narrative of Girl Genius (which is assigned Year +19, Day 0).  Clues in the narrative usually allow an event to be placed relative to one of these.
 * 3) When was the attack on Castle Heterodyne?  The  for Klaus Barry Heterodyne shows his birth year as 1_72. The second digit is round on the top and, since older dates in the crypt include 1623, is probably an 8.  Thus, he was born in "1872".  The attack occurred  after Klaus Barry Heterodyne was born, which would put the attack in 1873-4.
 * 4) When does the main narrative begin?  The narrative through Volume IX takes place in the late winter/early and middle spring . The main narrative takes place roughly  after the attack on Castle Heterodyne.  Thus, the story likely begins in 1892-4. This date is assumed to be +19 years, 0 days, though it could as easily be off by +/- several months.
 * 5) "Actual Dates":  The Canon gives a few absolute dates, but most entries in the Actual Dates column are calculated based on clues in the narrative.
 * 6) Canonicity:  Nothing is entirely certain.  Though statements in the narrative such as "100 years ago" are given literal effect below for convenience, but they were probably only approximations and are, of course, subject to being 'clarified'.
 * 7) Elapsed time:  As an approximation, a historical event occurring "14 years before", for example, volume 7 of the story is taken to occur at the same time as an event occurring "14 years before" volume 1 of the story, since the amount of time elapsed during the story isn't terribly precise (and may never be).
 * 8) Shading: Green highlights the attack-on-Castle-Heterodyne and start-of-narrative events.  Unshaded cells hold dates that source material fixes with some precision.  Grey cells hold ranges and other best estimates.

Long, long ago

 * - style="background:#efefef;"
 * (long, long ago)
 * Geisterdamen their Eternal Lady at the Geisterdamen temple.
 * - style="background:#efefef;"
 * (-832† years, or earlier)
 * 1041 or earlier
 * Ht'rok-din Mechanicsburg.
 * -831† years
 * 1042
 * Knife, son of Ht'rok-din, 1st Castle Heterodyne in 1042 AD.
 * - style="background:#efefef;"
 * (-830† to -576† years)
 * Vlad "the Blasphemous" Heterodyne creates Jãgerdraught and the first of the Jãgers
 * - style="background:#efefef;"
 * (-830† to -576† years)
 * Jägergenerals created.
 * - style="background:#efefef;"
 * (-830† to -576† years)
 * Egregious Heterodyne uncorks the Dyne and destroys the first castle
 * - style="background:#efefef;"
 * (-830† to -576† years)
 * Castle Heterodyne three times.
 * -575† years
 * 1298
 * 5th Castle Heterodyne in 1298 AD.
 * }
 * Castle Heterodyne three times.
 * -575† years
 * 1298
 * 5th Castle Heterodyne in 1298 AD.
 * }
 * 5th Castle Heterodyne in 1298 AD.
 * }

Not so long, long ago
" what [the Heterodyne girl] would be," and orders her to keep others safe from that girl. Later, Lucrezia Mongfish transfers Otilia's personality into Von Pinn.
 * - style="background:#efefef;"
 * (long, long ago)
 * Jägers Jägertroth to serve House Heterodyne.
 * - style="background:#efefef;"
 * (-279 to -229 years)
 * 1593† to 1643†
 * Maxim, youngest of Da Boyz, is born.
 * - style="background:#efefef;"
 * (-830 to -196 years)
 * Faustus Heterodyne Castle Heterodyne self-aware.
 * -196† years
 * 1677
 * A major to Castle Heterodyne in 1677 AD.
 * -181 years, or earlier
 * 1691† or earlier
 * The spark  nine  for Andronicus Valois, the Storm King.  Storm King and Coalition of the West  Bludtharst Heterodyne.  Knights of Jove are  in Storm King's quest to win the heart of Euphrosynia Heterodyne. Storm King's reign ends.
 * -181 years, or earlier
 * 1691† or earlier
 * One of Van Rijn's muses, Otilia is tasked by the Storm King to protect ". But Van Rijn
 * The spark  nine  for Andronicus Valois, the Storm King.  Storm King and Coalition of the West  Bludtharst Heterodyne.  Knights of Jove are  in Storm King's quest to win the heart of Euphrosynia Heterodyne. Storm King's reign ends.
 * -181 years, or earlier
 * 1691† or earlier
 * One of Van Rijn's muses, Otilia is tasked by the Storm King to protect ". But Van Rijn
 * One of Van Rijn's muses, Otilia is tasked by the Storm King to protect ". But Van Rijn
 * -121 years
 * 1751†
 * Embi is . As a young man, he leaves home to see the world.
 * -81 years
 * 1779†
 * Da Boyz (Ognian, Dimo, and Maxim) for the Red Heterodyne against the lava cannons of the Unseen Empire.
 * }
 * Da Boyz (Ognian, Dimo, and Maxim) for the Red Heterodyne against the lava cannons of the Unseen Empire.
 * }
 * }

Long ago

 * - style="background:#efefef;"
 * (long ago)
 * Her Majesty, Queen Albia, ascends throne of England.
 * - style="background:#efefef;"
 * (-40 years to -30 years)
 * 1830s†
 * Baron Klaus Wulfenbach, The Heterodyne Boys, and Lucrezia Mongfish are born.
 * -20 years
 * 1852†
 * The Heterodyne Boys, Baron Klaus Wulfenbach, and Punch & Judy begin adventuring.
 * - style="background:#efefef;"
 * (-20 years to -3 years, 4 months)
 * 1852†-1868†
 * Klaus becomes a.
 * - style="background:#efefef;"
 * (decades ago)
 * Eternal Lady frequent visits to Geisterdamen temple.
 * -6 years
 * 1867†-1868†
 * Prince of Sturmhalten grows experiments in Sturmhalten that occasionally to sewers.
 * -3 years, 4 months
 * October 1869†-October 1870†
 * Bill Heterodyne proposes to Lucrezia Mongfish, Lucrezia Klaus, Lucrezia  and  Klaus.
 * - style="background:#efefef;"
 * (-2 years, 7 months to +4 years)
 * June 1870†- 1879†
 * Gil is born. Klaus  Gil alive.  Klaus thinks this would give someone from Skifander a  to kill Gil.
 * -1 year, 42 days
 * 1872†
 * Klaus Barry Heterodyne is to Lucrezia and Bill in 1_72 AD.  It is 2 years and 3 months since Klaus disappeared; gossips still ignore the math.
 * - style="background:#efefef;"
 * (-?? months)
 * Lucrezia von Pinn as  for Klaus Barry Heterodyne.
 * -3 days
 * 1873†-1874†
 * Carson von Mekkhan as Heterodyne seneschal.
 * -1 day
 * 1873†-1874†
 * Bill and Barry Castle Heterodyne because of "something to do with giant vegetables".
 * - style="background:#ccffcc;"
 * Year 0, Day 0
 * February 1873†-February 1874†
 * 5th Castle Heterodyne is destroyed after sundown with ; Klaus Barry Heterodyne ; Lucrezia ; Lucrezia's notes are burned.
 * +?? hours
 * 1873†-1874†
 * Bill and Barry to Castle Heterodyne, recover bodies of Seneschal Von Mekkhan  staff.
 * +1 day
 * 1873†-1874†
 * Bill and Barry go to war, Castle Heterodyne for last time.
 * +6 months
 * 1873†-1874†
 * The Other goes to war the Sparks and the Heterodyne Boys; 43 major houses destroyed. Knights of Jove under Prince Aaronev VI Sturmvoraus  the Other.
 * - style="background:#efefef;"
 * (+0 to +1 years)
 * 1873†-1874†
 * "Eternal Lady" at the Geisterdamen temple, visibly pregnant.  The Holy Child is born.  Persons unknown  the Geisterdamen temple while the "Eternal Lady" is absent, take the Holy Child.  Geisterdamen  their temple.
 * - style="background:#efefef;"
 * (+0 to +1 years)
 * 1873†-1874†
 * Agatha is born.
 * - style="background:#efefef;"
 * (+0 to +3 years)
 * 1873†-1877†
 * "Eternal Lady" returns to the Geisterdamen temple, Geisterdamen to Europa to find the Holy Child.  Loremistress Milvistle  the gateway to the temple and its plans, stranding Geisterdamen in Europa.
 * - style="background:#efefef;"
 * (+3 year)
 * 1875-1876
 * The Barry Heterodyne and Bill Heterodyne observe the attack on Lord Womak's city. . Confirming their calculations and revealing the whereabouts of the other.
 * -|- style="background:#efefef;"
 * (+3 year)
 * 1875-1876
 * The Other attacking;  is found.  The Heterodyne Boys disappear.  Last date for  of a hive engine.  Snarlantz  most of the existing hive engines in Passholdt.  The great houses, causing widespread destruction.
 * - style="background:#efefef;"
 * (+3 year)
 * Castle Wulfenbach is ; Klaus whether the Other did it.
 * - style="background:#efefef;"
 * (+3 years)
 * Klaus after 'a six years' having spent about (four years in Skifander, and possibly additional time elsewhere) with baby Gil but without, begins his war to  The Baron's Peace throughout Europa.
 * +4 years, 6 months
 * TPU expedition Castle Heterodyne, is conscripted by the castle to.
 * - style="background:#efefef;"
 * (+4 years, 6 months to +5 years)
 * Klaus  Mechanicsburg,  Jägers and von Pinn,  town council.  Shadow government led by Carson von Mekkhan continues to rule Mechanicsburg in secret.
 * +5 years
 * Castle Heterodyne TPU assistant out for food; Klaus negotiates with the castle to supply labor.
 * +5 years, 2 months
 * Carson von Mekkhan of Throne of Faustus Heterodyne 437215353 seconds (13.85 years) prior to Agatha's arrival in Mechanicsburg, swears never to channel the castle again.
 * +6 years
 * Agatha 'Heterodynes' at age 5. Barry  the family to keep them hidden.
 * - style="background:#efefef;"
 * (+6 to +8 years)
 * Barry Agatha's locket and  it to her.
 * - style="background:#efefef;"
 * (+1 day to 8 years)
 * Barry Tarsus Beetle that Klaus did something untrustworthy.
 * +8 years
 * Barry on what should be a, placing Agatha in the sole care of Punch and Judy. He never returns.
 * +9 years
 * Higgs starts working on Wulfenbach airships. He serves for ten years "without distinction".
 * - style="background:#efefef;"
 * (+6 years to 12 years)
 * 1878†-1887†
 * Gil Zoing at age 8.  Klaus  Gil's spark.  Gil attends Castle Wulfenbach school incognito.
 * - style="background:#efefef;"
 * (+1 to +16 years)
 * Vrin and Aaronev VI Holy Machine,  sparky girls in  Lucrezia.
 * }
 * Carson von Mekkhan of Throne of Faustus Heterodyne 437215353 seconds (13.85 years) prior to Agatha's arrival in Mechanicsburg, swears never to channel the castle again.
 * +6 years
 * Agatha 'Heterodynes' at age 5. Barry  the family to keep them hidden.
 * - style="background:#efefef;"
 * (+6 to +8 years)
 * Barry Agatha's locket and  it to her.
 * - style="background:#efefef;"
 * (+1 day to 8 years)
 * Barry Tarsus Beetle that Klaus did something untrustworthy.
 * +8 years
 * Barry on what should be a, placing Agatha in the sole care of Punch and Judy. He never returns.
 * +9 years
 * Higgs starts working on Wulfenbach airships. He serves for ten years "without distinction".
 * - style="background:#efefef;"
 * (+6 years to 12 years)
 * 1878†-1887†
 * Gil Zoing at age 8.  Klaus  Gil's spark.  Gil attends Castle Wulfenbach school incognito.
 * - style="background:#efefef;"
 * (+1 to +16 years)
 * Vrin and Aaronev VI Holy Machine,  sparky girls in  Lucrezia.
 * }
 * - style="background:#efefef;"
 * (+6 years to 12 years)
 * 1878†-1887†
 * Gil Zoing at age 8.  Klaus  Gil's spark.  Gil attends Castle Wulfenbach school incognito.
 * - style="background:#efefef;"
 * (+1 to +16 years)
 * Vrin and Aaronev VI Holy Machine,  sparky girls in  Lucrezia.
 * }
 * }
 * }

Not so long ago

 * - style="background:#efefef;"
 * (+16 years)
 * Hidden Skifander is “discovered” by expedition. Zeetha to see the world.  Skull pirates capture Zeetha.
 * +16 years
 * "Dot magnetic prince guy" the last significant rebellion against The Baron's Peace but is put down in five months.
 * - style="background:#efefef;"
 * (+16 years)
 * Master Payne's Circus of Adventure  two of Van Rijn's muses (Tinka and Moxana).  Aaronev VI  Anevka in the Holy Machine.  Tarvek  Tinka and copies her to create a clank for Anevka.
 * +16 years
 * Zeetha skull pirate fortress and, with it,  to finding the way back to Skifander.
 * +16 years
 * Professor Tiktoffen to Castle Heterodyne.  He supervises repairs, but  to the Knights of Jove.
 * +17 years
 * Zeetha Master Payne's Circus of Adventure.
 * - style="background:#efefef;"
 * (+5 to +19 years)
 * Vole is expelled from Jägers, Jägertroth.
 * - style="background:#efefef;"
 * (+6 to +19 years)
 * A female prisoner her freedom from the Castle Heterodyne repair crew.
 * - style="background:#efefef;"
 * (+18 years)
 * Snarlantz one slaver engine to enslave a spark, then another  all of Passholdt into revenants.  Selnikov and the Jotun brothers erase evidence in Snarlantz's lab and  spark-enslaving engine for Aaronev VI.
 * - style="background:#efefef;"
 * (+18 years)
 * Klaus the Gilded Duke.  Wulfenbach clanks  the mountain of the Duke D'Omas.
 * - style="background:#efefef;"
 * (not too long ago)
 * Gil acquires Ardsley Wooster, a, and a Lamp while living incognito and  Zola.  When Gil returns to Castle Wulfenbach, he is announced as the son of the Baron.  Klaus (or Von Pinn)  Gil's mail.
 * style="white-space: nowrap" | +18 years, 9 months
 * Klaus Dihoxulator to TPU as test for Gil.
 * - style="background:#efefef;"
 * (+19 years, less ?? weeks)
 * Bangladesh DuPree walking gunboat Vienna 707. Moloch and Omar von Zinzer flee, as do Bruno and the kid. Bang  an electrical anomaly during the attack.
 * (+18 years, 50 weeks)
 * Tarsus Beetle a hive engine to TPU.
 * - style="background:#efefef;"
 * (+19 years)
 * Two weeks after destroying Vienna 707, Dupree a burning town and sees another electrical anomaly. Unusually, Bang wasn't the one who burned the town.
 * - style="background:#ccffcc;"
 * +19 years, 0 days
 * 1892†-1894†
 * The events of Girl Genius . Agatha Clay  an electrical anomaly with a malevolent figure inside, has her locket  by Omar von Zinzer, screams for him to .  Gil  the Dihoxulator,  Tarsus Beetle, and  a fish .  Merlot takes over TPU and  Agatha.
 * +19 years, 1 day
 * Agatha the Beetleberg Clank. Omar von Zinzer  while holding Agatha's locket.
 * +19 years, 3 days
 * Agatha in Castle Wulfenbach,  the imprisoned Othar Tryggvassen, Gentleman Adventurer,  from the Jägergenerals.
 * +19 years, 4 days
 * Gil a fish.  Agatha  Mr. Rovainen to "go do" whatever it is he "should be doing".
 * +19 years, 5 days
 * Agatha the Dingbots.  She and Gil destroy a hive engine  by Mr. Rovainen.  Gil proposes .  Klaus, Agatha, and others  that Agatha is a Heterodyne, probably Bill and Lucrezia's child.  Punch and Judy rescue Agatha but are 'killed' in the process by Von Pinn.  Zulenna Luzhakna is  by Dupree.  Agatha flees the castle, along with Othar Tryggvassen  and Krosp.
 * +19 years, 6 days
 * Madame Olga is by spider clank.
 * - style="background:#efefef;"
 * +19 years, ?? days
 * Klaus Jägers far from Agatha,  Moloch von Zinzer to Castle Heterodyne.  Othar Tryggvassen  with Theopholous DuMedd.  Klaus sends  Merlot to Castle Heterodyne  'Miss Clay, the Heterodyne girl'.
 * +19 years, 7 days
 * Circus helps Agatha her death.
 * +19 years, 8 days
 * Agatha Kolee-dok-Zumil training with Zeetha,  battle circus.  Moxana  a new game.
 * +19 years, a few days
 * Circus Zumzum a few days after Agatha begins training, meets Othar.  Jenka  instructions concerning Agatha.
 * +19 years, a few weeks
 * Circus revenants at Passholdt a few weeks after leaving Zumzum, acquires Da Boyz.
 * +19 years, 2 months
 * Master Payne's Circus of Adventure at Sturmhalten in Balan's Gap,  for Aaronev VI again.  Anevka  Aaronev VI.  Vrin helps an  Lucrezia  Agatha using the Holy Machine.  Wasp weasels  170 covert revenants aboard Castle Wulfenbach.  (First  Sturmhalten.)
 * +19 years, 2 months
 * Klaus that Agatha is alive,  to Sturmhalten to capture her.  Gil  Wooster to Sturmhalten, completes  repairs on Punch and Judy, including Punch's voice.  (Second  Sturmhalten.)
 * +19 years, 2 months
 * Tarvek shelves Anevka, a copy of Lucrezia into her clank.  Geisterdamen and the Lucrezia clank  several hive engines and  from Castle Sturmvoraus to ancient caverns.  Tinka and Moxana presumedly  in Castle Sturmvoraus.  Wulfenbach troops  covert revenants in Sturmhalten.  A gigantic projection  a Heterodyne heiress to the world, claims Klaus is the Other.  Lucrezia/Agatha  Vrin to die,  Klaus with a special slaver wasp.  Klaus  Lars,  Zeetha, Daughter of Chump.  Agatha  a house on the wicked Klaus.  Circus creates  Heterodyne apparition.  (Third  Sturmhalten.)
 * - style="background:#efefef;"
 * (+19 years, 2 months, ?? days)
 * Circus for England following Battle of Sturmhalten.  Sgt. Scorp, The Unstoppable Higgs, and Klaus  in Mechanicsburg.
 * +19 years, 2 months — Monday
 * Jenka at Mechanicsburg.  Knights of Jove  Mechanicsburg.  Zola  Castle Heterodyne.  Agatha  coffee.  Carson von Mekkhan  of Throne of Faustus Heterodyne 437215353 seconds (13.85 years)  after he swore never to do it again.  Agatha  Castle Heterodyne.  Klaus  units to destroy Castle Heterodyne.  (First day in Mechanicsburg.)
 * +19 years, 2 months —
 * At nightfall, Agatha's Torchmen the skies of Mechanicsburg for first time since the attack on Castle Heterodyne, drive off Zola's pink airship and Castle Wulfenbach.  Tarvek  Castle Heterodyne with Violetta.  Von Pinn  Castle Heterodyne.  Gilgamesh Wulfenbach, Schmott Guy  Castle Heterodyne.  Grantz  Othar before Klaus in Mechanicsburg.  In the morning, Agatha captures  in Castle Heterodyne. (Second day in Mechanicsburg.)
 * }
 * Agatha the Dingbots.  She and Gil destroy a hive engine  by Mr. Rovainen.  Gil proposes .  Klaus, Agatha, and others  that Agatha is a Heterodyne, probably Bill and Lucrezia's child.  Punch and Judy rescue Agatha but are 'killed' in the process by Von Pinn.  Zulenna Luzhakna is  by Dupree.  Agatha flees the castle, along with Othar Tryggvassen  and Krosp.
 * +19 years, 6 days
 * Madame Olga is by spider clank.
 * - style="background:#efefef;"
 * +19 years, ?? days
 * Klaus Jägers far from Agatha,  Moloch von Zinzer to Castle Heterodyne.  Othar Tryggvassen  with Theopholous DuMedd.  Klaus sends  Merlot to Castle Heterodyne  'Miss Clay, the Heterodyne girl'.
 * +19 years, 7 days
 * Circus helps Agatha her death.
 * +19 years, 8 days
 * Agatha Kolee-dok-Zumil training with Zeetha,  battle circus.  Moxana  a new game.
 * +19 years, a few days
 * Circus Zumzum a few days after Agatha begins training, meets Othar.  Jenka  instructions concerning Agatha.
 * +19 years, a few weeks
 * Circus revenants at Passholdt a few weeks after leaving Zumzum, acquires Da Boyz.
 * +19 years, 2 months
 * Master Payne's Circus of Adventure at Sturmhalten in Balan's Gap,  for Aaronev VI again.  Anevka  Aaronev VI.  Vrin helps an  Lucrezia  Agatha using the Holy Machine.  Wasp weasels  170 covert revenants aboard Castle Wulfenbach.  (First  Sturmhalten.)
 * +19 years, 2 months
 * Klaus that Agatha is alive,  to Sturmhalten to capture her.  Gil  Wooster to Sturmhalten, completes  repairs on Punch and Judy, including Punch's voice.  (Second  Sturmhalten.)
 * +19 years, 2 months
 * Tarvek shelves Anevka, a copy of Lucrezia into her clank.  Geisterdamen and the Lucrezia clank  several hive engines and  from Castle Sturmvoraus to ancient caverns.  Tinka and Moxana presumedly  in Castle Sturmvoraus.  Wulfenbach troops  covert revenants in Sturmhalten.  A gigantic projection  a Heterodyne heiress to the world, claims Klaus is the Other.  Lucrezia/Agatha  Vrin to die,  Klaus with a special slaver wasp.  Klaus  Lars,  Zeetha, Daughter of Chump.  Agatha  a house on the wicked Klaus.  Circus creates  Heterodyne apparition.  (Third  Sturmhalten.)
 * - style="background:#efefef;"
 * (+19 years, 2 months, ?? days)
 * Circus for England following Battle of Sturmhalten.  Sgt. Scorp, The Unstoppable Higgs, and Klaus  in Mechanicsburg.
 * +19 years, 2 months — Monday
 * Jenka at Mechanicsburg.  Knights of Jove  Mechanicsburg.  Zola  Castle Heterodyne.  Agatha  coffee.  Carson von Mekkhan  of Throne of Faustus Heterodyne 437215353 seconds (13.85 years)  after he swore never to do it again.  Agatha  Castle Heterodyne.  Klaus  units to destroy Castle Heterodyne.  (First day in Mechanicsburg.)
 * +19 years, 2 months —
 * At nightfall, Agatha's Torchmen the skies of Mechanicsburg for first time since the attack on Castle Heterodyne, drive off Zola's pink airship and Castle Wulfenbach.  Tarvek  Castle Heterodyne with Violetta.  Von Pinn  Castle Heterodyne.  Gilgamesh Wulfenbach, Schmott Guy  Castle Heterodyne.  Grantz  Othar before Klaus in Mechanicsburg.  In the morning, Agatha captures  in Castle Heterodyne. (Second day in Mechanicsburg.)
 * }
 * Master Payne's Circus of Adventure at Sturmhalten in Balan's Gap,  for Aaronev VI again.  Anevka  Aaronev VI.  Vrin helps an  Lucrezia  Agatha using the Holy Machine.  Wasp weasels  170 covert revenants aboard Castle Wulfenbach.  (First  Sturmhalten.)
 * +19 years, 2 months
 * Klaus that Agatha is alive,  to Sturmhalten to capture her.  Gil  Wooster to Sturmhalten, completes  repairs on Punch and Judy, including Punch's voice.  (Second  Sturmhalten.)
 * +19 years, 2 months
 * Tarvek shelves Anevka, a copy of Lucrezia into her clank.  Geisterdamen and the Lucrezia clank  several hive engines and  from Castle Sturmvoraus to ancient caverns.  Tinka and Moxana presumedly  in Castle Sturmvoraus.  Wulfenbach troops  covert revenants in Sturmhalten.  A gigantic projection  a Heterodyne heiress to the world, claims Klaus is the Other.  Lucrezia/Agatha  Vrin to die,  Klaus with a special slaver wasp.  Klaus  Lars,  Zeetha, Daughter of Chump.  Agatha  a house on the wicked Klaus.  Circus creates  Heterodyne apparition.  (Third  Sturmhalten.)
 * - style="background:#efefef;"
 * (+19 years, 2 months, ?? days)
 * Circus for England following Battle of Sturmhalten.  Sgt. Scorp, The Unstoppable Higgs, and Klaus  in Mechanicsburg.
 * +19 years, 2 months — Monday
 * Jenka at Mechanicsburg.  Knights of Jove  Mechanicsburg.  Zola  Castle Heterodyne.  Agatha  coffee.  Carson von Mekkhan  of Throne of Faustus Heterodyne 437215353 seconds (13.85 years)  after he swore never to do it again.  Agatha  Castle Heterodyne.  Klaus  units to destroy Castle Heterodyne.  (First day in Mechanicsburg.)
 * +19 years, 2 months —
 * At nightfall, Agatha's Torchmen the skies of Mechanicsburg for first time since the attack on Castle Heterodyne, drive off Zola's pink airship and Castle Wulfenbach.  Tarvek  Castle Heterodyne with Violetta.  Von Pinn  Castle Heterodyne.  Gilgamesh Wulfenbach, Schmott Guy  Castle Heterodyne.  Grantz  Othar before Klaus in Mechanicsburg.  In the morning, Agatha captures  in Castle Heterodyne. (Second day in Mechanicsburg.)
 * }
 * Circus for England following Battle of Sturmhalten.  Sgt. Scorp, The Unstoppable Higgs, and Klaus  in Mechanicsburg.
 * +19 years, 2 months — Monday
 * Jenka at Mechanicsburg.  Knights of Jove  Mechanicsburg.  Zola  Castle Heterodyne.  Agatha  coffee.  Carson von Mekkhan  of Throne of Faustus Heterodyne 437215353 seconds (13.85 years)  after he swore never to do it again.  Agatha  Castle Heterodyne.  Klaus  units to destroy Castle Heterodyne.  (First day in Mechanicsburg.)
 * +19 years, 2 months —
 * At nightfall, Agatha's Torchmen the skies of Mechanicsburg for first time since the attack on Castle Heterodyne, drive off Zola's pink airship and Castle Wulfenbach.  Tarvek  Castle Heterodyne with Violetta.  Von Pinn  Castle Heterodyne.  Gilgamesh Wulfenbach, Schmott Guy  Castle Heterodyne.  Grantz  Othar before Klaus in Mechanicsburg.  In the morning, Agatha captures  in Castle Heterodyne. (Second day in Mechanicsburg.)
 * }
 * +19 years, 2 months —
 * At nightfall, Agatha's Torchmen the skies of Mechanicsburg for first time since the attack on Castle Heterodyne, drive off Zola's pink airship and Castle Wulfenbach.  Tarvek  Castle Heterodyne with Violetta.  Von Pinn  Castle Heterodyne.  Gilgamesh Wulfenbach, Schmott Guy  Castle Heterodyne.  Grantz  Othar before Klaus in Mechanicsburg.  In the morning, Agatha captures  in Castle Heterodyne. (Second day in Mechanicsburg.)
 * }
 * }
 * }

In the future

 * - style="background:#efefef;"
 * (in the future?)
 * The enigma uses a time window device device to view Agatha in downtown Beetleburg
 * - style="background:#efefef;"
 * (in the future)
 * Agatha a time window device with Gil, Moloch, and a Geisterdame.
 * }
 * Agatha a time window device with Gil, Moloch, and a Geisterdame.
 * }

† marks relative or absolute dates that are off by 100 years if Klaus Barry Heterodyne was born in 1972.

Other sources of Internal Chronology
an entry in girl genius lab