context: Is an action RPG computer game developed jointly by Square Enix and Disney Interactive and published by Square Enix on the PlayStation Portable. Kingdom Hearts Birth by Sleep was released on January 9 in Japan [1], September 7 2010 in America [2] and September 10 of the same year in Europe and Australia [3]. The game did not come out for PSP go, although the main ideologist of the Kingdom Hearts series, (in Dutch), expressed interest in reissuing the game for paid download from the PlayStation Network virtual network. Since certain changes were made in the western release of the game, an international version of the Kingdom Hearts Birth by Sleep Final Mix game was released in Japan [4].
question: What year was Kingdom Hearts Birth by Sleep released in Europe?
answers.text: 2010