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PostItaly's Laws for Returning Emigrants (Eugenio Battaglia, Italy, 10/14/19 3:57 am)
Answering John E's question about the recovery of Italian citizenship, the law of "Jus Sanguinis" is still valid.
This law is very old, from 1912. Originally it referred to the descendant of an Italian father. After the new Italian constitution of 31 December 1947, the descendant of an Italian mother can also recover Italian citizenship. The interested person must present the appropriate documentation to the Italian Consulate in his/her present town, in primis the birth certificate of the ancestor provided by the Italian town from which the same ancestor moved abroad. In some cases this may be a problem, as the descendants of a distant ancestor may not exactly be aware of the little village from where he/she was from.
The local Consul must verify that the ancestor never officially renounced Italian citizenship.
Using this law many non-citizen persons of Italian nationality could enter Italy.
After the long-overdue death of Tito and the dissolution of Yugoslavia, many Italians from the East Adriatic areas could enter Italy under this law. The exodus of this population from the East Adriatic areas is the fourth after 1866 (direct order of oppression by the Austrian Emperor Franz Josef), 1919 (after Woodrow Wilson's decision to favor the new Kingdom of the Croats, Slovenians and Serbs), and 1945-'47 (after the Diktat Peace Treaty).
See the study below about returning Argentines:
JE comments: Lots of interesting data in this study. One number that stands out: already in 1991 less than 1% of Argentines were Italian-born. In 1914, one-quarter of the residents of Buenos Aires were born in Italy, and the percentage may have been even higher in 1930.
Eugenio, are Argentine immigrant/"returnees" in Italy received with special affection, or are the locals fed up with immigrants regardless of their provenance--unless, of course, you're the Pope?