The answer is the Ottoman Empire.
The Ottoman Empire conquered the Byzantine Empire and its capital, Constantinople, in 1453 CE. Since then, the Ottoman Empire remained as a strong power and its sovereignty spanned from the Balkans and Anatolia to the Middle East and all of North-Africa. Since it was an Islamic empire, it influenced strongly in the culture and politics of the Middle East. This empire collapsed with the end of the World War I in 1919, and most of its former territories were divided by the British and the French or formed new nation-states. The Republic of Turkey is the direct heir state of the Ottoman Empire.
A democracy works under meeting and exercise the government in person, while a republic is the meeting and agreements of the citizens. They assemble and administrate to keep the discussion civil.
Because it was a threat to American citizens. It was close enough to do major harm.
Six Confederate veterans from Pulaski, Tennessee created the original Ku Klux Klan on December 24, 1865, during the Reconstruction of the South after the Civil War. The name was formed by combining the Greek kyklos (κύκλος, circle) with clan. The group was known for a short time as the "Kuklux Clan"
To curb concentrations of power that interfere with trade and reduce economic competition.
