Timeline

30 Billion 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.

28,000 B.C

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

40s-50s

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

60s-70s

 * Danny of Love Handel is born.
 * Linda Flynn is born of Clyde and Betty Jo Flynn.
 * Lawrence Fletcher is born in England.
 * Heinz Doofenshmirtz is born in Druelestein, Doofelstein.

80s

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

90s

 * Love Händel is formed.
 * Candace Flynn is born in Danville.
 * Phineas Flynn is born in Danville.
 * Ferb Fletcher is born in England.
 * Isabella Garcia-Shapiro is born.
 * Linda Flynn and Lawrence Fletcher meet and fall in love at a Love Händel concert.
 * Love Händel breaks up.

2000s

 * Perry the Platypus is purchased by the Flynn-Fletcher family.

2008

 * Phineas and the Ferb-Tones is formed.
 * Phineas and the Ferb-Tones performs for the last time.
 * Love Händel reforms for one-night only.