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→Big picture: Trans Time patients from 1974
| 1966-1975 || Early cryonics organizations struggle to maintain their patients in liquid nitrogen. Out of 22 cryopreservations done during that period, only 3 would remain preserved to this day [2020].
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| 19761974-1990 || The two cryonics organizations that have provided continuous service for the longest time and have the most members , Alcor and the Cryonics Institute, are created in 1976. They would slowly grow during the following years. Trans Time would also keep a couple patients from 1974 up to this day [2020].
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| 1991-2000 || The Cryonics Institute preserves their third patient in 1991{{snd}}the first two being relatives from the founder, {{W|Robert Ettinger}}. Alcor and the Cryonics Institute start getting more members and patients.
