Timeline

300 Million B.C.

 * Phineas Flynn, Ferb Fletcher, and Candace Flynn arrive in prehistoric Danville.
 * Isabella Garcia-Shapiro and The Fireside Girls arrive in Prehistoric Danville and rescue Phineas and Candace Flynn and Ferb Fletcher.

27,000 B.C

 * Conk is cryogenically frozen in a block of ice in Prehistoric Danville.

Victorian age

 * Dr. Phineastein is born.
 * Ferbgor is born
 * Jekyll Doofenshmirtz is born.

40s-50s

 * Reginald Fletcher is born in England.
 * Clyde Flynn is born.
 * Betty Jo Flynn is born.
 * Lorraine Flynn is born
 * Danny's parents meet and fall in love through "boogie-woogie" music.
 * Lloyd Wexler is born.
 * Winifred Fletcher is born.

60s-70s

 * Danny of Love Händel is born.
 * Linda Flynn is born of Clyde and Betty Jo Flynn.
 * Lawrence Fletcher is born in England.
 * Heinz Doofenshmirtz is born in Gimelschtump, Druelselstein.

80s

 * Linda Flynn becomes the famous one-hit wonder Lindana.

90s

 * Love Händel is formed.
 * Doofenshmirtz marries Charlene Doofenshmirtz.
 * Vanessa Doofenshmirtz is born.
 * Candace is born in Danville.
 * Phineas is born in Danville.
 * Ferb is born in England.
 * Isabella is born.
 * Linda and Lawrence meet each other.
 * Linda and Lawrence fell in love at Love Händel's farewell concert.
 * Love Händel breaks up.

2000s

 * Bucky dies and is replaced by Perry.
 * Perry is purchased by the Flynn-Fletcher family. (Phineas and Ferb)
 * The Phineas and Ferb series starts. (Rollercoaster)
 * Phineas and Ferb constructe the Coolest Coaster Ever. ("Rollercoaster")
 * Phineas and the Ferb-Tones is formed. ("Flop Starz")
 * Phineas and the Ferb-Tones performs for the last time. ("Flop Starz")
 * The Smapoil 500 race goes on. ("The Fast and the Phineas")
 * Love Händel reforms for one-night only. ("Dude, We're Getting the Band Back Together!")
 * Phineas and Ferb remodel their star which appears to be a milkshake bar. (Out to Launch)
 * 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")
 * The Earth and the Universe grows to a massive size, though no one notices. ("Attack of the 50 Foot Sister")
 * Phineas and Ferb spread public awareness for the aglet. ("Tip of the Day")
 * Phineas and Ferb meet Thaddeus and Thor. ("Thaddeus and Thor")
 * The Paper Pelican flys in the sky. ("De Plane! De Plane!")
 * The Starnose Mole is discovered. ("At the Car Wash")
 * Perry gets re-assigned to a new villian and family, making Phineas and Ferb think Perry is lost. ("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")
 * Baljeet falls in love with Indian friend, Mishti. ("That Sinking Feeling")