They fought for independence and freedom
Social
political
religious
cultural
The similarity and the difference among the early state
government is that they have their own government, in addition to that, the
state has their economy to be separated among the nations in which is one of
its difficulties when it comes to trading.
C) a unified European currency did not come about until the creation of the Euro -- instituted as an "invisible" currency in 1999 for trading but not available for common use (i.e., as a physical currency) until 2002.