Timeline

300 Million B.C.

• Phineas, Ferb, and Candace arrive in prehistoric Danville. ("It's About Time!")
• Isabella and the Fireside Girls arrive in prehistoric Danville and rescue Phineas, Ferb, and Candace. ("It's About Time!")

27,000 B.C

• Conk is cryogenically frozen in a block of ice in prehistoric Danville. ("Boyfriend From 27,000 B.C.")
• Prehistoric mammals arrive in prehistoric Danville.
• Phinabunk and Gerb invent the wheel and the English language. ("Tri-Stone Area")
• Can-tok invents fire. ("Tri-Stone Area")

1524

• Princess Isabella gets rescued by Phineas and Ferb. ("Doof Dynasty")

Victorian age

• Jekyll Doofenshmirtz is born. ("The Monster of Phineas-n-Ferbenstein")
• Jeremiah is born. ("The Monster of Phineas-n-Ferbenstein")
• Constance is born. ("The Monster of Phineas-n-Ferbenstein")
• Ferbgor is born. ("The Monster of Phineas-n-Ferbenstein")
• Dr. Phineastein is born. ("The Monster of Phineas-n-Ferbenstein")
• Isabella lookalike is born. ("The Monster of Phineas-n-Ferbenstein")

1800s

• Pizzazium Infinionite is discovered in 1894. ("Vanessassary Roughness")
• Xavier Onassis builds a time machine. ("It's About Time!")

1900s

• In 1903, Baljeet's great grandfather entered a bicycle race but fell into a tiger pit. ("Tour de Ferb")
• In 1903, the Danville World's Fair is celebrated. ("Steampunx")

10s

• In 1914, Ohio Flynn and Rhode Island Fletcher find the amulet of Juatchadoon ("Phineas and Ferb and the Temple of Juatchadoon")

20s

• In 1924, Baljeet's grandfather entered a bicycle race and avoided the tiger pit but not the tiger. ("Tour de Ferb")
• Mr. Slushy Dawg was founded in 1929. ("The Bully Code")

40s-50s

• Reginald is born in England.
• Clyde is born.
• Betty Jo is born.
• Lorraine is born. ("Get That Bigfoot Outa My Face!")
• Danny's parents meet and fall in love through "boogie-woogie" music. ("Dude, We're Getting the Band Back Together")
• Dr. Lloyd Wexler is born. ("A Hard Day's Knight")
• Winifred is born.
• A short movie is made about Pizzazium Infinionite, to celebrate its 50th anniversary in 1944. ("Vanessassary Roughness")
• In 1952, Professor Ross Eforp tried to create Football X-7, but failed. ("My Fair Goalie")
• A UFO crash lands in Roswell, New Mexico. ("What Do It Do?")
• In 1957, Baljeet's father entered a bicycle race with a cage around him to outsmart the tiger but he was wrong.("Tour de Ferb")

60s-70s

• Danny of Love Händel is born. ("Dude, We're Getting the Band Back Together")
• Linda Flynn is born of Clyde Flynn and Betty Jo Flynn. ("Mom's Birthday")
• Lawrence Fletcher is born of Reginald and Winifred Fletcher, in England.
• Doofenshmirtz is born in Gimmelshtump, Drusselstein. ("Raging Bully")
• All people of Gimmelshtump have to give their lawn gnomes away for money. ("Lawn Gnome Beach Party of Terror")
• Roger Doofenshmirtz is born. ("Gaming the System")
• Heinz Doofenshmirtz draws a face on a balloon and calls it Balloony. He loses it, and is not much later found by Mitch. ("The Chronicles of Meap")

80s

• Love Händel is formed ("Delivery of Destiny")
• The reverse engineering craze hits its zenith in 1982 with the band Zanzibar's hit song, "What Do It Do?"
• Linda and Heinz go on a date. ("What Do It Do?")
• Linda becomes the famous one-hit wonder, Lindana. She goes on "The Fun Tour" in 1985. ("Ladies and Gentlemen, Meet Max Modem!")

90s

• Doofenshmirtz marries Charlene.
• Vanessa Doofenshmirtz is born on June 15. ("Dude, We're Getting the Band Back Together")
• Candace is born in Danville on July 11. ("Candace Loses Her Head")
• Phineas is born in Danville.
• Ferb is born in England on February 29.
• Isabella is born.
• Buford is born.
• Baljeet and Mishti are born in India.
• Linda and Lawrence fall in love at Love Händel's farewell concert. ("Dude, We're Getting the Band Back Together")
• Love Händel breaks up. ("Dude, We're Getting the Band Back Together")
• Flynn-Fletcher Antiques founded. ("Phineas and Ferb's Quantum Boogaloo")

2000s

• Bucky dies and is replaced by Perry. ("It's About Time!")
• Baljeet moves to America.
• The summer vacation where the show's events take place begins. ("Rollercoaster"), ("Candace Loses Her Head"), ("The Best Lazy Day Ever").
• Isabella grows a crush on Phineas, Candace with Jeremy, and Ferb with Vanessa.
• Phineas and Ferb construct the Coolest Coaster Ever ("Rollercoaster").
• The Swamp Oil 500 race goes on ("The Fast and the Phineas").
• Phineas and Ferb make a backyard beach ("Lawn Gnome Beach Party of Terror").
• Phineas and the Ferb-Tones is formed ("Flop Starz").
• Phineas and the Ferb-Tones performs for the last time ("Flop Starz").
• Candace briefly sees Perry as a secret agent fighting Doofenshmirtz. ("The Ballad of Badbeard"), ("Leave the Busting to Us!"), ("Bowl-R-Rama Drama")
• Love Händel reforms ("Dude, We're Getting the Band Back Together").
• Professor Destructicon captured and arrested ("One Good Scare Ought to Do It!").
• Phineas and Ferb decide to do nothing for a day ("The Best Lazy Day Ever").
• Phineas and Ferb get Goldie and make a backyard underwater animal show ("Backyard Aquarium").
• Phineas and Ferb spread public awareness for the aglet. Meanwhile, Doofenshmirtz's high school recording goes viral ("Tip of the Day").
• Phineas and Ferb meet Thaddeus and Thor ("Thaddeus and Thor").
• The Paper Pelican flies in the sky and break Howard Hughes and the Spruce Goose's record ("De Plane! De Plane!").
• Perry is assigned to a new villain and family, making Phineas and Ferb think Perry is lost ("Oh, There You Are, Perry").
• Perry gets reassigned back to Doofenshmirtz and the Flynn-Fletcher family ("Oh, There You Are, Perry").
• Phineas, Ferb, Isabella, Candace, Linda and Lawrence get shipwrecked ("Swiss Family Phineas").
• Phineas and Ferb meet their new extreme fan, Irving ("Hide and Seek").
• Phineas and Ferb and their friends shrink down ("Hide and Seek").
• Baljeet tries to impress an old friend from India, Mishti Patel ("That Sinking Feeling").
• The Baljeatles is formed ("The Baljeatles").
• Phineas and Ferb get X-Ray glasses that are a total bust, prompting them to make their own X-ray Glasses ("No More Bunny Business").
• Phineas and Ferb leave current Danville to go back in time (see the prehistoric section of this timeline for "It's About Time!").
• The Earth and the rest of the universe grow to a massive size, though no one notices ("Attack of the 50 Foot Sister").
• Phineas and Ferb directed the Summer version of the music video "It's On" from "Camp Rock 2: The Final Jam" kicking off Disney Channel's Summer Vacation.
• Phineas and Ferb deliver presents to Danville in Santa's place. ("Phineas and Ferb Christmas Vacation!").
• Candace has a dream about going to Bustopolis with Agent P and escaping Doofenwarlock ("Wizard of Odd").
• Phineas and Ferb attend Clive Addison special effects convention ("Nerds of a Feather").
• Candace finds out Linda is Lindana ("Ladies and Gentlemen, Meet Max Modem!").
• Phineas, Ferb, and their friends travel around the world ("Phineas and Ferb: Summer Belongs to You!").
• Jeremy and Candace become boyfriend and girlfriend ("Phineas and Ferb: Summer Belongs to You!")
• Phineas and Ferb discover Perry's double life and they go on an adventure to a parallel universe to thwart a more evil Dr. Doofenshmirtz (Phineas and Ferb the Movie: Across the 2nd Dimension).
• Perry has a spy mission go terribly wrong causing him to disappear. ("Where's Perry?")
• Phineas and Ferb build their own New Year's ball and drop it from outer space. ("Happy New Year!")
• Phineas and Ferb leave, and later return, from the future Danville ("Phineas and Ferb's Quantum Boogaloo").
• Perry goes on a joint mission in Canada with Lyla Lolliberry. ("Sidetracked")
• Stacy discovers that Perry is a secret agent. ("Happy Birthday, Isabella")
• Doofenshmirtz's new inator drains the power from the Marvel superheroes and Phineas and Ferb try to figure out what happened. ("Phineas and Ferb: Mission Marvel")
• Doofenshmirtz moves the earth away from the sun, and Phineas and Ferb need to get it back to its original position. ("Phineas and Ferb Save Summer")
• Phineas, Ferb and Isabella need to help Candace, Vanessa and Dr. Doofenshmirtz stop a contagion of Doof-zombies ("Night of the Living Pharmacists").
• Phineas and Ferb are thrust into a global rebellion when the plans for blowing up the Death Star accidentally fall into their hands. ("Phineas and Ferb: Star Wars") (Parallel Universe)
• Dr. Doofenshmirtz gives up evil to become Vanessa's science teacher. ("Doof 101"), ("Last Day of Summer")

2010s

• Phineas realizes Isabella has been crushing on him. ("Act Your Age")

2020s

Phineas and Ferb's Quantum Boogaloo:

• Candace marries and has 3 kids, Xavier, Fred and Amanda
• Phineas and Ferb arrive from the past, so Candace tries to bust them again
• Candace goes back in time to bust them, but ends up allowing Doofenshmirtz to take over the Tri-State Area
• She goes back in time again to stop herself from busting the boys, reversing the bad future

Unknown

• The Fireside Girls are founded by Eliza M. Feyersied ("Fireside Girl Jamboree")

2nd Dimension

1960s

• Heinz Doofenshmirtz is born in Gimmelshtump
• Heinz Doofenshmirtz loses Choo-Choo, turning him evil

1990s

• Candace Flynn is born in Danville
• Phineas Flynn is born in Danville
• Ferb Fletcher is born in England
• Lawrence Fletcher marries Linda Flynn

2000s

• Phineas and Ferb get Perry from the adoption center.
• Perry goes to fight Doofenshmirtz and is turned into Platyborg.
• Doofenshmirtz takes over the Tri-State Area.
• Candace forms the Resistance to fight Doofenshmirtz.
• Phineas-1, Ferb-1, Perry-1, Candace-1 and Doofenshmirtz-1 arrive from the 1st Dimension.
• Doofenshmirtz tries to take over the 1st Dimension.
• Platyborg's programming is reversed, so he is no longer evil.
• Doofenshmirtz is defeated and the Tri-State Area is returned to normal.