This is a timeline of the events that take place in the anime/manga series "Monster" by Naoki Urasawa. For organizational purposes, you may want to change the zoom window from auto to years.
Bonaparta meets a Czech actress and the two get married around '59 -- he leaves her a year later.
-people in the mid-90s described him as a man in his 40s, so this could give or take a good five years
This is just speculation, as the age he started attending the orphanage at is never revealed, only what age he is upon departure.
Bonaparta conducts personality reprogramming experiments as a part of the Czech Secret Police
-They started in the mid-60s, so give or take a year.
Peter Capek meets up with his old friend Milan Kolasch and tells him about how he met an 'extraordinary individual' (Franz Bonaparta).
Viera Cerna (Jomama) and her best friend Halenka Novakova try to escape from Czechoslovakia together. Viera is caught and sent back, but her friend makes it to Germany.
Bonparta, Capek, and forty-two others begin the eugenics experiment to create a “perfect” child.
The author uses the pen name Jakub Faroubek.
Halenka Novakova, under the alias Margot Langer, occupies a position as a high class call girl in Munich and becomes intimately involved with Hans Georg Schuwald.
Julius Reichwein goes back to college and studies psychology, then stays at the university to earn his teaching credentials.
Tenma enrolls in the Dusseldorf University Medical School, also being attended by Rudy Gillen.
After he graduates, Tenma is hired as a neurosurgeon at Eisler Memorial Hospital.
While looking for Margot, Schuwald pays a visit to her best friend in Prague to see if she knows of the woman's whereabouts, but Viera is unable to provide him with any information. This is also Schuwald's first encounter with the twins.
Viera is faced with a Sophie's Choice-like scenario, trying to decide which of her children will be experimented on by Bonaparta and his organization -- Anna is chosen in the end and is taken to the Red Rose Mansion for days. During this time, Viera is also taken away and Johan stays at the Three Frogs, awaiting his sister's return.
The Red Rose Mansion massacre takes place -- the scene is witnessed by young Anna Liebert who runs home to tell her brother everything she experienced after a brief confrontation with Franz Bonaparta, the instigator of the event.
--did not really happen Jan. 2
Viera tells her children they must live on their own. Consequently, Johan and Anna burn down the Three Frogs and leave Prague.
--this did not happen in February, but in order to show that it occurred after the massacre, the later date was added
Johan and Anna travel through Czechoslovakia. During this period, they spend time with people known by the names of Uncle Josef, Aunt Klara, and Mr. Bödecker in addition to the couple who offered them sandwiches (as seen in the series).
--did not start on exactly Feb 2nd
General Helmut Wolf finds the twins on the Czech-German border and saves their lives; Johan is sent to Kinderheim 511 and Anna to another orphanage
Johan orchestrates the massacre at Kinderheim 511. Only he and Christoph survive, and they make plans to meet again in the future.
Johan and Anna are adopted by the Liebert couple. After settling in, they are paid a visit by Franz Bonaparta which causes Johan to kill their new parents. Anna finds out her brother is the killer, not only of the Lieberts, but all their other foster parents, and, as a result, shoots him in the head.
WHERE THE SERIES STARTS
After being shot in the head by Anna, Johan is rushed to Eisler Memorial Hospital and receives treatment from Doctor Tenma, who saves the boy's life over that of the town mayor's and consequently loses his position as the head of neurosurgery.
To "help" Tenma get back everything he lost, Johan poisons three of the doctor's superiors then disappears from the hospital, taking his amnesia-stricken sister with him.
--this did not really happen April 2nd
Johan and Anna spend a little time with a man named Reinhardt Dinger, who Johan manages to manipulate into becoming a serial killer.
—this did not happen really happen on the 3rd
--did not really happen April 4th
The twins travel to Heidelberg and find a new family to stay with.
Johan disappears from Heidelberg, leaving his sister in the care of the Fortners. He plans to come "pick her up" on their twentieth birthday.
Peter Capek escapes from the Czech Republic to Germany and gets involved with right-wing extremists after destroying the life of his "friend," Milan, who invited him over to Germany in the first place.
A fire conveniently starts where Johan's school and identification records are kept in Koln; he disappears after this.
After leaving Koln, Johan lives with the Schumanns in Hanover for about a year. The couple claims he is the child of a relative.
--did not actually happen in February
Year is approximate
Johan goes to Bruntal and lands himself with some new foster parents. Coincidentally, this couple's last name is Liebert and they have a deceased son named Johan, so our Johan is able to jump into the dead boy's identity. The new family moves to Offenbach Hesse.
He does not spend much time with his parents, but doesn't kill them until after he leaves Munich eight years later.
Halenka "Margot Langer" Novakova retires from prostitution and starts living with Johan in an apartment located in Offenbach Hesse.
Adolf Junkers, along with two other men, is hired by Johan to carry out some of the murders in the middle-aged couple killings.
Give or take a year
During this time, Johan's "backup" family, the second Lieberts, are still alive -- he is just not living with them.
Johan kills off two out of three of the men he hired in 1993, but Junkers manages to escape. He gets hit by a car while escaping, and receives treatment from Tenma. Johan comes to kill Junkers and, in the process, meets his old doctor.
Tenma gives his testimony to Lunge then starts investigating Johan's whereabouts. He is led to Johan's sister, Anna Liebert, who currently using the name Nina Fortner.
--did not actually happen Apr. 2
Anna's parents are killed as a result of Johan's plans. She and Tenma escape and live in a shack for the next few days while she begins recalling some memories of her past.
Tenma becomes a suspect in the killings of Anna's parents and a gardener at Heidelberg Castle.
--did not actually happen May 25th
Anna moves to a small village and starts working at an Italian restaurant run by a man named Mr. Rosso. The owner is a former hitman who Anna is hoping will teach her how to kill, but when she realizes how different he has become from his former self, she decides not to.
Tenma investigates Kinderheim 511 and Johan's past. In the process, he saves the life of a young boy named Dieter and contacts his former classmate, Rudy Gillen. After Gillen finally comes to believe in Tenma's testimony, he begins trying to help prove both his innocence and the existence of Johan.
Anna leaves the town she was staying in and ventures to Frankfurt, trying to find and kill her brother. She crosses paths with Geidlitz and The Baby's organization.
Investigating the murder of the Springers, a family Johan stayed with, Tenma travels to Frankfurt. At their estate, he meets a thief named Otto Heckel.
Johan abandons the underground bank. When others involved find out about this, they lose their minds deciding how the money will be distributed, causing a massacre to break out.
The Baby, Peter Capek, and other right-wing extremists try to burn down Frankfurt's Turkish district as a "welcome party" for Johan, but are stopped by Tenma, Anna, Dieter, and Heckel.
--did not actually happen in February
--month is approximate
Lotte introduces to Anna a children's story known as "The Nameless Monster" then subsequently asks if she's Johan's twin sister.
(All separately) Johan, Anna and Dieter, Lunge, and Tenma head to Prague. On his way, Tenma encounters Wolfgang Grimmer, a "freelance journalist" who helps him illegally cross the Czech/German border.
--did not really happen on the 10th
Mikhail Petrov (also known as Reinhardt Biermann), the former director of Kinderheim 511, is murdered in his home in Prague.
--did not happen September 11th
All the events in the Prague arc take place -- Grimmer, Suk and Tenma's involvement with the Czech Secret Police, Anna recovering her lost memories, etc.
Lunge, who has been pursuing Tenma with great persistence, also uncovers the truth and learns he really is innocent.
--did not happen Sept. 12
She is discovered by Jaromir Lipsky, whom she stays with for three months until February. When they go to the RR Mansion again, they find that Johan has already burned it down.
Tenma is apprehended by the police after paying a visit to Bonaparta's former editor, Tomas Zobak.
Christoph, a Kinderheim survivor and member of the right-wing extremists, makes three fatal mistakes. Johan manipulates three serial murderers to kill several individuals, thus covering Christoph's errors.
*Not to be confused with story of the sleeping monster that sent Kinderheim 511 into madness
During the burning of the mansion, Johan encountered Herman Fuhr, the superior pupil Bonaparta created.
Fuhr remarks that Johan was speaking to himself, saying, "The end...in the Landscape of the End, there will be only he and I."
--did not happen Sept. 13
Tenma travels to Prague and finds to ruins of the Red Rose Mansion. He also meets with General Wolf on his deathbed.
Afterwards, he goes on to find Eva and crosses paths with Martin.
Martin is hired to escort Eva Heinemann around to parties so she can point Johan out to the neo-Nazi group looking to introduce him and Christoph (unbeknownst to everyone else, the two already know each other).
When they later fall in love and try to run away together, Martin is killed in a gun fight
--did not really happen March 2nd
Inner conflict between the extremists results in Christoph hiring a hit woman to kill The Baby.
--month is approximate
Eva decides that she wants to be the one to kill Johan, and figures she can most likely learn of his whereabouts through Christoph.
During a confrontation between the two, Christoph almost shoots Eva, but Tenma arrives with perfect timing and saves her life. Christoph, who has been shot in the ear, is taken to a hospital.
Hearing of The Baby's death, Peter Capek tries to escape to his mountain villa. In the process, he loses his sanity and ends up killing his driver. When Capek eventually arrives, he encounters Johan and informs him that Franz Bonaparta is still alive.
--this did not actually happen April 2nd
Capek meets with Anna and tells her about her past/for what purposes she and Johan were created.
--this did not actually happen April 3rd
Johan and Anna are finally reunited and confront each other about their pasts. Anna nearly commits suicide after their talk but is rescued by Tenma. Afterwards, Peter Capek appears and tells Tenma that Bonaparta's son is alive in Prague, and that he also gave this information to Johan. Following his message, Capek is shot to death.
--this did not actually happen April 4th
Johan pays a visit to Lispky (not shown) and learns of Franz Bonaparta's current location. He begins wrapping things things up by killing his underlings. Lipsky is also paid visits by Tenma and Lunge, who are able to determine Bonaparta's location with his help.
In addition to this, Anna is hospitalized for a few months as she recovers from the trauma of the reunion.
Grimmer and Lunge both arrive in Ruhenheim and spend a week or so getting to know the townsfolk. At first they are both suspicious of one another, but after some time they grow to get along well. Later, Tenma, Anna, and Gillen arrive in the town.
The population of Ruhenheim is obliterated in Johan's scheme to kill Bonaparta.
In the end, Bonaparta is shot dead, Roberto and Grimmer die from fatal injuries, and Johan takes a bullet to the head thanks to Herbert Knaup.
Anna starts school again (as does Dieter), Lunge retires as an officer and becomes a professor, Verdemann proves Grimmer's innocence, and Eva starts working as an interior designer.
With the help of Heckel, Tenma tracks down the twins' mother and meets with her. After, he visits Johan in a police hospital. Johan is supposedly in a comatose state, but he sits up and begins speaking to Tenma. Following Tenma's departure, Johan's bed is seen empty.
Gustav Kottmann makes a critical mistake and just barely manages to escape police officials.
Following this event, he disappears for about a year. Weber's speculation suggests that he was kept safe by some unknown assassin, also known as Herman Fuhr, the author of "Dorn in the Darkness" and Kottmann's favorite author.
Fuhr enters the home of Eugen Molke (Jaroslav Čarek) and threatens him with a gun. Molke resists and tries to shoot the offender, injuring him slightly, but is in turn shot in the temple.
Early morning -- A mysterious man with a bleeding arm shows up for treatment at St. Ursula Emergency Clinic, but disappears right after without leaving a trace (Fuhr)
Eugen Molke (revealed by police investigations to be Jaroslav Čarek, formerly a high ranking adviser in Omnipol) is found dead in his home.
Gustav Kottmann goes on a murderous rampage at the St. Ursula Emergency Clinic in Salzburg, Austria.
"Coincidentally," the three people he executes are the only three witnesses who would be able to identify Molke. This is what causes Weber to theorize that Kottmann and whoever murdered Molke had the whole ordeal planned out together (or rather, that Molke's murderer had given Kottmann a false sense of partnership). It reminds Weber of the Johan Liebert, or "J" as the media knows him, case and he becomes inspired to delve deeper into the core of it all.
Werner Weber begins his investigations into Johan Liebert and the mysterious Herman Fuhr.
After a phone call with Fuhr, Weber disappears, leaving only his notes and the sketch of a figure resembling Johan
Six years later, Weber still has yet to be found since his mysterious disappearance.
Takashi Nagasaki coincidentally finds out someone is selling original Helmuth VOSS drawings and tries to get his hands on them, but discovers they were bought by someone using the name "Werner Weber."
Takashi Nagasaki finally comes into contact with the person who bought the sketches under the name Werner Weber, and finds out it's not the former reporter, but an individual involved with shady book dealers.
He confronts the man, who tells him his client said to destroy the sketches as soon as he got them. When Nagasaki asks him to describe the buyer, he says it's a person who sits next to one of the world's most powerful political leaders, and that they plan to recreate Bonaparta's experiments.
"Werner Weber" also tells Nagasaki that his client plans to get in contact with Herman Fuhr, claiming he is the next generation VOSS.