While the majority of European immigration to Mexico has been Spanish with the first wave starting with the colonization of America and the last one being a consequence of the Spanish Civil War of 1937, immigrants from other European countries have arrived to Mexico as well: during the Second Mexican Empire the immigration was mostly French, and during the late nineteenth and early twentieth centuries migrants mainly from Italy, the United Kingdom, Ireland and Germany followed. Additionally small numbers of White Americans, Croats, Greeks, Poles, Romanians, Russians and Ashkenazi Jews came. The European Jewish immigrants joined the Sephardic community that lived in Mexico since colonial times, though many lived as Crypto-Jews, mostly in the northern states of Nuevo León and Tamaulipas. Some communities of European immigrants have remained isolated from the rest of the general population since their arrival, among them the German-speaking Mennonites from Russia of Chihuahua and Durango, and the Venetos of Chipilo, Puebla, which have retained their original languages.