Counterfactual
The Parallel Lives of Sanaa and Willie
In 89 girls, Sanaa found its level. 50 years earlier, Willie occupied that same statistical address.
1977–2025
Sanaa
Peak year
2006
Peak births
482
Latest count
89
Status
Declining
Peak generation
Gen Z
1880–2025
Willie
Peak year
1919
Peak births
4,051
Latest count
9
Status
Endangered
Peak generation
Greatest Generation
In 89 girls, Sanaa found its level. 50 years earlier, Willie 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.