Counterfactual
The Parallel Lives of Izabella and Rosemary
In 532 girls, Izabella found its level. 50 years earlier, Rosemary occupied that same statistical address.
1987–2025
Izabella
Peak year
2010
Peak births
2,254
Latest count
532
Status
Declining
Peak generation
Gen Z
1882–2025
Rosemary
Peak year
1947
Peak births
4,542
Latest count
1,222
Status
Rising
Peak generation
Boomer
In 532 girls, Izabella found its level. 50 years earlier, Rosemary occupied that same address. One peaked in the Boomer era; the other in the Gen Z world. They never met. But the data remembers them both.