Events from 1950 - 1989
February 1954
- February 21st - Plucked right out of the middle of saving his boyfriend from the Institute, Francois finds himself faced with the challenge of carrying out a normal life in 1954. (A Thousand Words, Part I, Butterflies)
October 1957
- October 4th - In their journey to 1957 to research Doctor Volken and Project Icarus, Kimiko, Xiulan and Hiro discover a far older, and far greater secret… (Beyond Good and Evil)
April 1961
- Hiro and Kimiko's journey to the past begins with a discovery that the present has a great deal it could learn from the mistakes of the past when they head to Coyote Sands. (Be A Better Person)
May 1961
- April 17th - Hiro Nakamura and Kimiko Nakamura discover more of the secrets of their family, intertwined with the tragic birth of the Company from out of Coyote Sands. (Like Icarus)
November 1968
- November 15th - An eclectic group of individuals - Delia, Isabella, Jaiden, Lexington, Linus and Russo are shot back to Vietnam during the war, to rescue one man - Benjamin Ryans. But is this a mission or an ambush? (Star Spangled Eyes, Butterflies)
June 1972
- June 29th - Almost forty years ago, someone guides another - Linda - down one of two roads diverged in yellow woods.(The Better Proposition, Butterflies) Butterflies
November 1975
- November 18th - A chance meeting in Mexico in the 1970s reunites legacies of a darker time… featuring Kazimir and Wagner. (My Son)
March 1979
- March 18th - In 1979, Kimiko Nakamura discovers something about her life and her connection to the future she is trying to save. (Special In His Eyes)
- March 22nd - 'Bruce the orderly' (Hiro) and 'Dr. Rai Chang' (Kimiko) find themselves swept up in a typical but never routine Company operation by Sabra. (Tomorrow's Headline)
- March 24th - Kimiko Nakamura, under the guise of Doctor Rai Chang, learns about Project Icarus and the dark secret surrounding its origin.(Specimen)
April 1989
- On a trip through time to fix her own past, Gillian meets her blood relatives. (Blood is Blood, Butterflies)
- Gillian starts to step on her butterfly of the past, but then finds out she has something important she never knew she had. (Love is Love, Butterflies)
- But that doesn't stop Gillian from getting a few mementos to take home. (Past is Past, Butterflies)
November 1989
- A Company agent is presented with a difficult choice about whether to let Winslow go or bring him into Company custody that has lasting repercussions. (Over The Wall)
December 1989
- Kaylee and Joseph travel back to the winter of 1989, shortly before Lynette's twelfth birthday, to prevent one of Samuel's followers from cutting her young life abruptly short. (Fast as You Can, Butterflies)