Counterfactual
The Parallel Lives of Rosanna and Lilly
In 58 girls, Rosanna found its level. 50 years earlier, Lilly occupied that same statistical address.
1880–2025
Rosanna
Peak year
1982
Peak births
492
Latest count
58
Status
Stable
Peak generation
Millennial
1880–2025
Lilly
Peak year
2010
Peak births
2,891
Latest count
1,218
Status
Declining
Peak generation
Gen Z
In 58 girls, Rosanna found its level. 50 years earlier, Lilly occupied that same address. One peaked in the Gen Z era; the other in the Millennial world. They never met. But the data remembers them both.