Counterfactual

The Parallel Lives of Bonnie and Summer

In 785 girls, Bonnie found its level. 50 years earlier, Summer occupied that same statistical address.

1880–2025

Bonnie

peak 1947 2025 18801900192019401960198020002020
Peak year 1947
Peak births 10,214
Latest count 785
Status Endangered
Peak generation Boomer
1949–2025

Summer

peak 1998 2025 18801900192019401960198020002020
Peak year 1998
Peak births 2,558
Latest count 1,973
Status Rising
Peak generation Gen Z
In 785 girls, Bonnie found its level. 50 years earlier, Summer 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.