March/April 2012: Michael Langdon is born just six months after being conceived by Tate Langdon and Vivien Harmon.
Spring 2015: At age three, Michael murders his nanny while under the care of Constance Langdon. Physically, he looks like he could be 5 or 6.
June 2017: Three years before the bomb. Michael, age 5, is living with an adoptive mother (he doesn't know how she found him), who is a Satan worshiper. He gets thrown in jail after murdering a supermarket butcher, then discovered by a coven of warlocks. Physically, he looks like he's about 16.
March/April 2020: The bomb goes off.
Oct. 2021: Michael arrives at Outpost 3. His most recent emails are dated Oct. 2021, and we know it's been 18 months since the bombs first fell. Michael is nine and a half, but looks like he's in his 20s, maybe even his 30s.