It was the first multicultural empire in history. It was also the first very large empire. Because of this the Empire had to develop ways of running effectively. Roads were built over great distances. Standardize currency. Localized governing systems (i.e. satrapies). It was also the first time Asian powers attempted to invade Europe.
A fundamental principle of the Articles of Confederation is A. Permanent unity between the states. (Apex)
There was an enlightenment. People became a lot more interested in art, education, science and cleanliness. <span />
