Counterfactual
The Parallel Lives of Katerina and Nellie
In 151 girls, Katerina found its level. 50 years earlier, Nellie occupied that same statistical address.
1954–2025
Katerina
Peak year
1998
Peak births
259
Latest count
151
Status
Stable
Peak generation
Gen Z
1880–2025
Nellie
Peak year
1918
Peak births
4,048
Latest count
567
Status
Rising
Peak generation
Greatest Generation
In 151 girls, Katerina found its level. 50 years earlier, Nellie 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.