Answer: The Roman Empire converted them
Explanation: When the Roman Empire took over, they converted their religion, changing their Greek gods into Gods of the empire, then eventually Christianity became a mass religion and many polytheistic and pagan individuals were forced into Christianity.
The Greek gods are still believed in by some people, called "Hellenic Pagans". If you believe in the Greek gods still, I recommend checking it out.
<span>This diversity caused what has become to be known as "cultural imperialism". In other words, the culture of the colonizer was reflected in both the colony and the indigenous people that they came into contact with. This led to the expansion of the ideas of individual countries as well as colonies as diverse as Europe.</span>
Truman implemented this in response to two threats one being a communist-led uprising against the government in Greece and two being Soviet demands for some control of Turkey's Dardanelles. It was implemented in Berlin when Truman ordered U.S. planes to fly supplies to the people of West Berlin in response to the Soviet Union's 11 month blockade on Berlin.. or something among those lines
That would be the Ottoman Empire, after its fall, Czechoslovakia was formed, ad parts of the empire were given France and Italy, while others to the Greeks.