I have that feeling that we lived during the era of the greatest currency in the history of mankind.
 List of countries that their currencies dominated and year

_Egypt(1350BC-1200BC)

_Lydia(1200BC-550BC)

_Achaemenid Empire (550BC-330BC)

_Macedonia(330BC-315BC)

_Seleucid Empire (315BC-200BC)

_Rome (200BC-395AD)

_Byzantine Empire (395AD-660&750-1200)

_ Umayyad Caliphate (660-750)

_Florence & Venice (1200-1450)

_ Portugal (1450-1530)

_ Spain (1530-1640)

_ Netherlands (1640-1720)

_ France (1720-1815)

_ Great Britain (1815-1920)

_ United States (1921-2032) 2032 my prediction.

_ # Bitcoin ( 2032- Forever)