Complex sentence: In 1978 the institution merged with "Sociedad Italiana" and changed its name to Club Deportivo Italiano, but the clubs third and latest name change occurred in 2000, when it became known as Club Sportivo Italiano.
Split into simpler sentences: In 1978 the institution merged with "Sociedad Italiana" and changed its name to Club Deportivo Italiano. The club's last name change occurred in 2000, when it became known under its current denomination Club Sportivo Italiano.