Counterfactual
The Parallel Lives of Sienna and Yolanda
In 2,659 girls, Sienna found its level. 50 years earlier, Yolanda occupied that same statistical address.
1960–2025
Sienna
Peak year
2025
Peak births
2,659
Latest count
2,659
Status
Rising
Peak generation
Gen Alpha
1901–2025
Yolanda
Peak year
1969
Peak births
3,771
Latest count
49
Status
Endangered
Peak generation
Gen X
In 2,659 girls, Sienna found its level. 50 years earlier, Yolanda occupied that same address. One peaked in the Gen X era; the other in the Gen Alpha world. They never met. But the data remembers them both.