Counterfactual
The Parallel Lives of Margo and Johanna
In 540 girls, Margo found its level. 50 years earlier, Johanna occupied that same statistical address.
1905–2025
Margo
Peak year
1954
Peak births
715
Latest count
540
Status
Rising
Peak generation
Boomer
1880–2025
Johanna
Peak year
1984
Peak births
919
Latest count
309
Status
Declining
Peak generation
Millennial
In 540 girls, Margo found its level. 50 years earlier, Johanna occupied that same address. One peaked in the Millennial era; the other in the Boomer world. They never met. But the data remembers them both.