Counterfactual

The Parallel Lives of Rhiannon and Lacy

In 210 girls, Rhiannon found its level. 50 years earlier, Lacy occupied that same statistical address.

1974–2025

Rhiannon

peak 1999 2025 18801900192019401960198020002020
Peak year 1999
Peak births 651
Latest count 210
Status Rising
Peak generation Gen Z
1880–2025

Lacy

peak 1982 2025 18801900192019401960198020002020
Peak year 1982
Peak births 988
Latest count 67
Status Endangered
Peak generation Millennial
Rhiannon and Lacy peaked in the same cultural weather — the Gen Z naming world. They are not replacements; they are siblings separated by 50 years, occupying the same statistical address at different addresses in time.