performance
...that the performance of La liberazione di Ruggiero dall'isola d'Alcina in Warsaw in 1628 was the earliest performance of an Italian opera outside of Italy?
...that the performance of <i id="mwC5g"><a class="mw-redirect" href="./La_liberazione_di_Ruggiero_dall'isola_d'Alcina" id="mwC5k" rel="mw:WikiLink" title="La liberazione di Ruggiero dall'isola d'Alcina">La liberazione di Ruggiero dall'isola d'Alcina</a></i> in <a href="./Warsaw" id="mwC5o" rel="mw:WikiLink" title="Warsaw">Warsaw</a> in 1628 was the earliest <b id="mwC5s"><a href="./Polish_opera" id="mwC5w" rel="mw:WikiLink" title="Polish opera">performance</a></b> of an <a href="./Italian_opera" id="mwC50" rel="mw:WikiLink" title="Italian opera">Italian</a> <a href="./Opera" id="mwC54" rel="mw:WikiLink" title="Opera">opera</a> outside of <a href="./Italy" id="mwC58" rel="mw:WikiLink" title="Italy">Italy</a>?