Counterfactual
The Parallel Lives of Ariane and Diamond
In 18 girls, Ariane found its level. 50 years earlier, Diamond occupied that same statistical address.
1952–2025
Ariane
Peak year
1978
Peak births
164
Latest count
18
Status
Declining
Peak generation
Gen X
1908–2025
Diamond
Peak year
1999
Peak births
2,160
Latest count
94
Status
Endangered
Peak generation
Gen Z
In 18 girls, Ariane found its level. 50 years earlier, Diamond occupied that same address. One peaked in the Gen Z era; the other in the Gen X world. They never met. But the data remembers them both.