Counterfactual
The Parallel Lives of Mona and Iva
In 61 girls, Mona found its level. 50 years earlier, Iva occupied that same statistical address.
1880–2025
Mona
Peak year
1957
Peak births
1,231
Latest count
61
Status
Endangered
Peak generation
Boomer
1880–2025
Iva
Peak year
1918
Peak births
889
Latest count
117
Status
Stable
Peak generation
Greatest Generation
In 61 girls, Mona found its level. 50 years earlier, Iva occupied that same address. One peaked in the Greatest Generation era; the other in the Boomer world. They never met. But the data remembers them both.