However, from the year 1857 to 1940, large waves of European immigrants began arriving to Uruguay, with the majority of the immigrants coming from Italy. Minor European immigrant groups – Frenchmen, Germans, Swiss, Russians, Jews, and Armenians, among others – also migrated to Uruguay. The settlement of the European immigrants has resulted in traditions that integrate this diversity with the indigenous people or Charrúa elements. Uruguay has century-old remains and fortresses of the colonial era. Its cities have a rich architectural heritage, and a number of writers, artists, and musicians. Carnaval and candombe are the most important examples of African influence by slaves, as well as Umbanda religious beliefs and practices. Guarani traditions can be seen in the national drink, mate. The culture in Uruguay is very similar to the culture of Argentina.