A strong historical emigration has created a Breton diaspora within the French borders and in the overseas departments and territories of France; it is mainly established in the Paris area, where more than one million people claim Breton heritage. Many Breton families have also emigrated to the Americas, predominantly to Canada (mostly Quebec and Atlantic Canada) and the United States. The only places outside Brittany that still retain significant Breton customs are in Île-de-France (mainly Le Quartier du Montparnasse in Paris), Le Havre and in Îles des Saintes, where a group of Breton families settled in the mid-17th century.