The Book of Daniel is a book in the Hebrew Bible. The book tells of how Daniel, a Judean exile at the court of Nebuchadnezzar II (605 to 562 BC), the ruler of Babylon, becomes a high government official and delivers various visions.
The earliest manuscripts discovered, like the traditional Jewish version, are written partly in Hebrew and partly in Aramaic, and consist of a series of six third-person narratives (chapters one to six) followed by four apocalyptic visions in the first person (chapters seven to twelve). The narratives take the form of court tales which focus on tests of religious fidelity involving Daniel and his friends (chapters one, three and six), and Daniel's interpretation of royal dreams and visions (chapters two, four and five). In the second part of the book, Daniel recounts his own reception of dreams, visions and angelic interpretations. (Introduction from Wikipedia)