The Covid-19 pandemic was responsible for its postponement but, with the health situation on the continent gradually improving.
When the action gets underway in front of a planned 16,000 fans at a quarter-full Stadio Olimpico the overhelming feeling for European football's governing body UEFA will be of relief following the unprecedented decision to put the tournament on hold last year.
This time the month-long competition -- being staged for the first time in 11 cities across Europe rather than in just one or two host countries -- will focus the attention of the continent as it begins to open up for its summer season, with coronavirus infection rates dropping and vaccinations picking up pace.
Yet challenges remain, especially after UEFA chose to stick with the pan-European format.