Counterfactual
The Parallel Lives of Callie and Sonya
In 1,754 girls, Callie found its level. 50 years earlier, Sonya occupied that same statistical address.
1880–2025
Callie
Peak year
2014
Peak births
1,763
Latest count
1,754
Status
Stable
Peak generation
Gen Alpha
1905–2025
Sonya
Peak year
1967
Peak births
2,980
Latest count
100
Status
Endangered
Peak generation
Gen X
In 1,754 girls, Callie found its level. 50 years earlier, Sonya 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.