Counterfactual
The Parallel Lives of Sophie and Catherine
In 3,984 girls, Sophie found its level. 50 years earlier, Catherine occupied that same statistical address.
1880–2025
Sophie
Peak year
2011
Peak births
4,732
Latest count
3,984
Status
Stable
Peak generation
Gen Z
1880–2025
Catherine
Peak year
1956
Peak births
12,056
Latest count
972
Status
Endangered
Peak generation
Boomer
In 3,984 girls, Sophie found its level. 50 years earlier, Catherine 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.