|Croatia becomes 28th member of EU|
It comes almost two decades after Croatia's brutal war of independence.
Celebrations took place in the central square of Zagreb, with fireworks and music including Beethoven's Ode to Joy, the European anthem.
Croatian President Josipovic said it was "a great and joyful day for our homeland".
"This the day when we open a new chapter in the thick book of our history," he added.
Read more: BBC News - Croatia celebrates on joining EU