Counterfactual

The Parallel Lives of Guillermo and Tomas

In 264 boys, Guillermo found its level. 50 years earlier, Tomas occupied that same statistical address.

1885–2025

Guillermo

peak 1998 2025 18801900192019401960198020002020
Peak year 1998
Peak births 693
Latest count 264
Status Stable
Peak generation Gen Z
1880–2025

Tomas

peak 2003 2025 18801900192019401960198020002020
Peak year 2003
Peak births 537
Latest count 394
Status Stable
Peak generation Gen Z
Guillermo and Tomas 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.