The Maritimes were briefly the Dutch colony of Nova Hollandia..

We’re always taught in school that ever since European colonists arrived in what is now Canada, that it was always a colony of either England or France. However, it’s a little-known fact that for a brief time the Maritimes were conquered by the Dutch, and were a short lived colony with a remarkably bizarre history, named Nova Hollandia.

https://backyardhistory.ca/f/when-the-maritimes-were-dutch