Counterfactual

The Parallel Lives of Isela and Gillian

In 100 girls, Isela found its level. 50 years earlier, Gillian occupied that same statistical address.

1926–2025

Isela

peak 1998 2025 19401960198020002020
Peak year 1998
Peak births 196
Latest count 100
Status Stable
Peak generation Gen Z
1922–2025

Gillian

peak 1999 2025 19401960198020002020
Peak year 1999
Peak births 1,022
Latest count 47
Status Endangered
Peak generation Gen Z
Isela and Gillian 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.