Why does the Catholic Bible have more books?

There are seven more books in the Catholic bible than there are in the Protestant bible. While both bibles contain the same 27 books of New Testament, the Catholic bible contains 46 Old Testament books, seven more than our Protestant siblings.
The books that we have are as follows Sirach, Tobit, Wisdom, Judith, 1 and 2 Maccabees, and Baruch, (as well as longer versions of Daniel and Esther).

The decision finally determining the exact number of books accepted as inspired Scripture for Catholics was not made until the Council of Trent in 1546. The Council Fathers accepted 46 Old Testament books, following what appeared to them as a firm tradition of the Church from ancient times. The leaders of the Protestant Reformation, on the other hand, rejected some books.
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