Counterfactual

The Parallel Lives of Carlyn and Brooklyn

In 12 girls, Carlyn found its level. 50 years earlier, Brooklyn occupied that same statistical address.

1900–2025

Carlyn

peak 1992 2025 1900192019401960198020002020
Peak year 1992
Peak births 74
Latest count 12
Status Declining
Peak generation Millennial
1972–2025

Brooklyn

peak 2011 2025 1900192019401960198020002020
Peak year 2011
Peak births 7,178
Latest count 2,300
Status Declining
Peak generation Gen Z
Carlyn and Brooklyn peaked in the same cultural weather — the Millennial naming world. They are not replacements; they are siblings separated by 50 years, occupying the same statistical address at different addresses in time.