period of slow demographic growth. Immigration At the 2018 census, 69.9% of the inhabitants of Alsace were natives of Alsace, 16.0% were born in the rest of Metropolitan France, 0.5% were born in Overseas France, and 13.7% were born in foreign countries. Nearly 44% of the immigrants come from Europe, in particular from Germany (natives of Germany residing in Alsace where housing is cheaper), Italy, Portugal and Serbia. Since 2008, the number of Turkish immigrants living in Alsace has declined, whereas the number of Maghreban immigrants has risen less than the number of European immigrants. The fastest growing groups of immigrants are those from Asia and from sub-Saharan Africa. Religion Alsace is generally seen as the most religious of all the French regions. Most of the Alsatian population is Roman Catholic, but, largely because of the region's German heritage, a significant Protestant community also exists: today, the EPCAAL (a Lutheran church) is France's second largest Protestant church, also forming an administrative union (UEPAL) with the much smaller Calvinist EPRAL. Unlike the rest of France, the Local law in Alsace-Moselle still provides for the Napoleonic Concordat of 1801 and the organic articles, which provides public subsidies to the Roman Catholic, Lutheran, and Calvinist churches, as well as to Jewish synagogues; religion classes in one of these faiths is compulsory in public schools. This divergence in policy from the French majority is due to the region having been part of Imperial Germany when the 1905 law separating the French church and state was instituted (for a more comprehensive history, see: Alsace-Lorraine). Controversy erupts periodically on the appropriateness of this legal disposition, as well as on the exclusion of other religions from this arrangement. Following the Protestant Reformation, promoted by local reformer Martin Bucer, the principle of cuius regio, eius religio led to a certain amount of religious diversity in the highlands of northern Alsace. Landowners, who as "local lords" had the right to decide which religion was allowed on their land, were eager to entice populations from the more attractive lowlands to settle and develop their property. Many accepted without discrimination Catholics, Lutherans, Calvinists, Jews and Anabaptists. Multiconfessional villages appeared, particularly in the region of Alsace bossue. Alsace became one of the French regions boasting a thriving Jewish community, and the only region with a noticeable Anabaptist population. Philipp Jakob Spener who founded Pietism was born in Alsace. The schism of the