Finnicization of Helsinki

The Finnicization of Helsinki is the transformation of Helsinki, Finland from a Swedish-speaking city to one that is bilingual or even multilingual, with Finnish as both the majority language and lingua franca. The dominant aspects of this transition were the influx of Finnish speakers in the process of urbanization, and the shift from Swedish to Finnish among some local Swedish-speaking residents over several generations.

Source: Wikipedia — Finnicization of Helsinki (CC BY-SA 4.0)