Counterfactual
The Parallel Lives of Rebeca and Rosie
In 166 girls, Rebeca found its level. 50 years earlier, Rosie occupied that same statistical address.
1888–2025
Rebeca
Peak year
2003
Peak births
422
Latest count
166
Status
Stable
Peak generation
Gen Z
1880–2025
Rosie
Peak year
1927
Peak births
1,560
Latest count
1,088
Status
Rising
Peak generation
Greatest Generation
In 166 girls, Rebeca found its level. 50 years earlier, Rosie occupied that same address. One peaked in the Greatest Generation era; the other in the Gen Z world. They never met. But the data remembers them both.