@Chevdove
You are one intelligent and thoughtful woman.
Most have little clue what kings the dragon's diadems refer to.
But there are seven kings, the Apostle John wrote. "Five have fallen, one is and one has not yet arrived. But when he does, he will remain a short while." John wrote these scriptures under vision while imprisoned on the Greek Island of Patmos in the year 100. John was the last of the original Apostles.
The first king is ancient Egypt of the time of the Pharoahs, the second is Assyria (King Sennacherib) and the third is ancient Babylon (Nebuchadnezzar). Those three dragon heads have a single diadem because they stood alone. But the fourth is a dual kingdom, Medo-Persia which conquered the once thought impregnable walled city of Babylon in just one night. In the Bible Book of Daniel, this dual kingdom is represented by a ram.
The Bible skips over the bloody wars, revolts and obvious savagery of this time. Media once dominated this partnership until Cyrus the Second ascended the Persian throne. He united the Persian forces to throw off the Median yoke. In 550 B.C.E. the Medes under the command of Astyages (Ishtumegu) and the Persians under Cyrus met in battle. But the army of Astyages revolted against him and brought Astyages in fetters to Cyrus. Cyrus then seized the capital of Media, Ecbatana. From then on Media played a secondary role in the Medo-Persian Empire. (History of the Persian Empire). That's two horns on the dragon's fourth head.
In time, Medo-Persia was supplanted by the Greeks or the Macedonians, under Alexander the Great. In his vision, Daniel saw Greece as a hairy he-goat. He prophesied the male goat would engage the ram in battle, whup its ass and stomp it. Which actually happened. But the great horn which represented the ruler of Greece would be cut off and four smaller horns would spring up after. Alexander the Great died suddenly at 33 and the Greek kingdom was divided among four of his generals.
As the Greeks petered out, Rome began to dominate. But there were actually two Roman Empires, East and West. Two more horns on another dragon head. How many heads and horns is that? Six heads and eight horns. Still with me?
Now, who or what is the seventh head? And why does this king remain only a short while? Because when compared with the previous kings' longevity and centuries in power, this seventh king would not be around that long - according to John's prophecy.
Confused yet? No wonder you're asking your bartender for a Green Comet on the rocks. But remember, the Bible warns folks away from spiritism and searching for omens.