Counterfactual
The Parallel Lives of Peggy and Brooklyn
In 12 girls, Peggy found its level. 50 years earlier, Brooklyn occupied that same statistical address.
1880–2025
Peggy
Peak year
1958
Peak births
10,071
Latest count
12
Status
Endangered
Peak generation
Boomer
1972–2025
Brooklyn
Peak year
2011
Peak births
7,178
Latest count
2,300
Status
Declining
Peak generation
Gen Z
In 12 girls, Peggy found its level. 50 years earlier, Brooklyn occupied that same address. One peaked in the Gen Z era; the other in the Boomer world. They never met. But the data remembers them both.