Roman currency was very effective for trade because most of romans had gold, silver, bronze, orichalcum and copper coinage etc so emperor’s started a new coin system and expanded trade
I believe it was in West Africa. The Dutch soon followed them...
To bring about a balance of power in Europe and prevent further conflict, they developed what became known as the Concert of Europe, beginning with the Congress of Vienna. The Congress of Vienna dissolved the Napoleonic world and attempted to restore the monarchies Napoleon had overthrown.
They were. Around that time there were issues between Russian Orthodox Christians and Muslims who were found in their south because of the Ottoman Empire. There were also insurgencies of Orthodox Christians in Ottoman controlled territories in former Slav areas.
