# Hajnal line

> English word · Proper noun

## Definitions
1. An imaginary line drawn between Saint Petersburg in Russia and Trieste in Italy, sometimes thought to divide Europe into two areas characterized by different levels of nuptiality, with lower marriage and fertility rates to the west, and higher rates to the east.

## Etymology
Proposed in 1965 by John Hajnal.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/hajnal-line