In this building you’ll find a great amount of papyrus scrolls in which all the discoveries carried out in your empire over centuries are meticulously documented. The Library is the place where your scientists research new technologies, and where the entire knowledge of your empire is stored.
It is in the Library where the entire knowledge of your empire is stored. This place is famous for its philosophic works of the greatest minds ever lived, whose ideas are immortalized on the countless papyrus scrolls. They contain wisdom and life teachings, and provide guidance for moral life in this world. Besides, you will find here numerous works of a more practical nature, such as development and use of advanced technologies. No information can ever get lost, because everything that is explored, discovered or invented in your empire, is routinely recorded by scribes, archived and stored in the Library. In order to unlock new technologies and reduce the time spent on each research, you need to expand the Library.
The library is the building for unlocking researches and reducing research time. When you expand the library 1 time your researches will get their time reduced by 1%. I would recommend expanding the library to about lvl. 30 or the maximum lvl. your research time can be reduced to.