Counterfactual
The Parallel Lives of Illa and Caitlyn
In 10 girls, Illa found its level. 50 years earlier, Caitlyn occupied that same statistical address.
1898–2025
Illa
Peak year
1926
Peak births
58
Latest count
10
Status
Stable
Peak generation
Greatest Generation
1968–2025
Caitlyn
Peak year
1998
Peak births
2,937
Latest count
71
Status
Endangered
Peak generation
Gen Z
In 10 girls, Illa found its level. 50 years earlier, Caitlyn occupied that same address. One peaked in the Gen Z era; the other in the Greatest Generation world. They never met. But the data remembers them both.