When the anthem was spread, authorities tried to ban it, considering it subversive (because of anti-monarchical and republican inspiration of the author); since the attempt proved a failure, they tried at least to censor the final part, extremely hard with the Austrians, but even here they failed.
After the declaration of war against Austria in 1848, military bands played it on any occasion, so that the King was forced to withdraw all the complaints of the text. Later it was the anthem that Garibaldi, when with his "Thousand" he began the conquest of southern Italy. Mameli was dead by that time, but the words of his song, which called for a united Italy, were more alive than ever.