Counterfactual
The Parallel Lives of Rocco and Leslie
In 679 boys, Rocco found its level. 50 years earlier, Leslie occupied that same statistical address.
1891–2025
Rocco
Peak year
2009
Peak births
785
Latest count
679
Status
Stable
Peak generation
Gen Z
1880–2025
Leslie
Peak year
1952
Peak births
2,358
Latest count
32
Status
Endangered
Peak generation
Boomer
In 679 boys, Rocco found its level. 50 years earlier, Leslie occupied that same address. One peaked in the Boomer era; the other in the Gen Z world. They never met. But the data remembers them both.