Counterfactual
The Parallel Lives of Colleen and Ariel
In 60 girls, Colleen found its level. 50 years earlier, Ariel occupied that same statistical address.
1901–2025
Colleen
Peak year
1964
Peak births
4,546
Latest count
60
Status
Endangered
Peak generation
Boomer
1892–2025
Ariel
Peak year
1991
Peak births
5,411
Latest count
851
Status
Declining
Peak generation
Millennial
In 60 girls, Colleen found its level. 50 years earlier, Ariel occupied that same address. One peaked in the Millennial era; the other in the Boomer world. They never met. But the data remembers them both.