Counterfactual

The Parallel Lives of Iona and Opal

In 65 girls, Iona found its level. 50 years earlier, Opal occupied that same statistical address.

1880–2025

Iona

peak 1918 2025 18801900192019401960198020002020
Peak year 1918
Peak births 404
Latest count 65
Status Stable
Peak generation Greatest Generation
1880–2025

Opal

peak 1918 2025 18801900192019401960198020002020
Peak year 1918
Peak births 2,847
Latest count 740
Status Rising
Peak generation Greatest Generation
Iona and Opal peaked in the same cultural weather — the Greatest Generation naming world. They are not replacements; they are siblings separated by 50 years, occupying the same statistical address at different addresses in time.