Doug, I've noted your research and seen your charts. I know you've invested a lot of time in this, and I commend you for it. Here is my study. I think you will find less contradictions this way.
Nebuchadnezzar’s Dream (Daniel 2)
I. Head of gold: Babylonian Empire (609–539 BC)
II. Breast and arms of silver: Medo-Persian Empire (539–332 BC)
III. Belly and thighs of brass: Greek Empire (332–63 BC)
A. Greek Empire (332–140 BC)
B. Semi-autocratic Hasmonean Kingdom (140–63 BC)
IV. Legs of iron and feet part of iron and part of clay: Roman Empire (63 BC–AD 395)
Daniel’s Vision of Four Beasts (Daniel 7)
“Thus he said, ‘The fourth beast shall be the fourth kingdom upon earth, which shall be diverse from all kingdoms, and shall devour the whole earth, and shall tread it down, and break it in pieces. And the ten horns out of this kingdom are ten kings that shall arise: and another shall rise after them; and he shall be diverse from the first, and he shall subdue three kings (Dan. 7:23–24).”
Daniel’s Vision of Four Beasts (Daniel 7)
I. Babylonian Empire (609–539 BC)
II. Medo-Persian Empire (539–332 BC)
III. Greek Empire (332–63 BC)
A. Greek Empire (332–140 BC)
B. Semi-autocratic Hasmonean Kingdom (140–63 BC)
IV. Roman Empire (63 BC–AD 395)
1. Pompey (63–49 BC)*
2. Julius Caesar (49–44 BC)
3. Augustus (44 BC–AD 14)
4. Tiberius (AD 14–37)
5. Caligula (AD 37–41)
6. Claudius (AD 41–54)
7. Nero (AD 54–68)
8. Galba (AD 68–69)**
9. Otho (AD 69)**
10. Vitellius (AD 69)**
11. Vespasian (AD 69–79)**
*
Siege of Jerusalem (63 BC) - Wikipedia
** The Year of the Four Emperors, AD 69, was a period in the history of the Roman Empire in which four emperors ruled in succession: Galba, Otho, Vitellius, and Vespasian. Between June of 68 and December of 69 Galba, Otho, and Vitellius successively rose and fell, the latter overlapping with the July 69 accession of Vespasian, who founded the Flavian dynasty.
Year of the Four Emperors - Wikipedia
First Jewish–Roman War - Wikipedia
Siege of Jerusalem (70 CE) - Wikipedia
Beast from the Sea (Revelation 13:1–10)
“And I stood upon the sand of the sea, and saw a beast rise up out of the sea, having seven heads and ten horns, and upon his horns ten crowns, and upon his heads the name of blasphemy (Revelation 13:1).”
Symbolism is consistent in the Bible. This beast from the sea is a kingdom, as per Daniel 7:23. Yet it has two sets of kings: heads and horns. So, it is an alliance between two states, such as the Axis Powers. Before the Napoleonic Wars, the Holy Roman Empire was a center of Christendom. It consisted of what are today known as Italy and Germany. The Byzantine Empire had fallen by 1453.
Dissolution of the Holy Roman Empire: 1806
Dissolution of the Holy Roman Empire - Wikipedia
Seven Italian Kings/Heads (Revelation 17:10)
1. Victor Emmanuel I (1802–1821)
2. Charles Felix (1821–1831)
3. Charles Albert (1831–1849)
4. Victor Emmanuel II (1849–1878)
5. Umberto I (1878–1900)
6. Victor Emmanuel III (1900–1946)*
7. Umberto II (1946)**
List of heads of state of Italy - Wikipedia
Recall: “And I stood upon the sand of the sea, and saw a beast rise up out of the sea, having seven heads and ten horns, and upon his horns ten crowns, and upon his heads the name of blasphemy (Revelation 13:1).”
The name of blasphemy: Emmanuel, meaning “God with us.” Jesus was called Emmanuel. Calling anyone else by that name is blasphemy.
“Behold, a virgin shall be with child, and shall bring forth a son, and they shall call his name Emmanuel, which being interpreted is, ‘God with us (Matthew 1:23).’”
“And I saw one of his heads [kings] as it were wounded to death; and his deadly wound was healed: and all the world wondered after the beast (Revelation 13:3).”
* “ITALIAN KING WOUNDED BERLIN [Revelation 13:3]. Dec. 28, 1915. (Via Sayville by wireless.) King Victor Emmanuel of Italy has been wounded by an Austrian grenade and is now in the hospital, it is stated by the Overseas News agency. The agency attributes its information to a traveler who has just arrived from Italy. Terroristic and anti-government demonstrations are extending to an alarming extent in Italy, according to this traveller.”
South Bend News-Times 28 December 1915 — Hoosier State Chronicles: Indiana's Digital Historic Newspaper Program
** Reigned only 34 days; “a short space (Revelation 17:10).”
“The beast that thou sawest was, and is not; and shall ascend out of the bottomless pit, and go into perdition (Antichrist): and they that dwell on the earth shall wonder, whose names were not written in the book of life from the foundation of the world, when they behold the beast that was, and is not, and yet is (Revelation 17:8).”
“And here is the mind which hath wisdom. The seven heads are seven mountains, on which the woman sitteth. And there are seven kings: five are fallen, and one is, and the other is not yet come; and when he cometh, he must continue a short space (Rev. 17:9–10).”
Seven Hills of Rome (Revelation 17:9)
1. Aventine Hill
2. Caelian Hill
3. Capitoline Hill
4. Esquiline Hill
5. Palatine Hill
6. Quirinal Hill
7. Viminal Hill
Seven hills of Rome - Wikipedia
“And the woman which thou sawest is that great city, which reigneth over the kings of the earth (Revelation 17:18)”—Rome.
“And the beast that was, and is not, even he is the eighth, and is of the seven, and goeth into perdition (Revelation 17:11)”—Antichrist.
“And the ten horns which thou sawest are ten kings, which have received no kingdom as yet; but receive power as kings one hour with the beast (Revelation 17:12).”
Ten German Rulers/Horns (Revelation 17:12)
1. Frederick William III (1797–1840)
2. Frederick William IV (1840–1861)
3. William I (1861–1888)
4. Frederick III (1888)
5. Wilhelm II (1888–1918)
6. Friedrich Ebert (1918–1925)
7. Hans Luther (1925)
8. Walter Simons (1925)
9. Paul von Hindenburg (1925–1934)
10. Adolf Hitler (1934–1945)*
List of heads of state of Germany - Wikipedia
These ten rulers began as the German Confederation (“no kingdom as yet”), but received power as kings one hour with the beast (1871–1918).
German Confederation - Wikipedia
* Whose holocaust lasted 42 months: 25 November 1941–8 May 1945 (Revelation 13:5).
“And there was given unto him a mouth speaking great things and blasphemies; and power was given unto him to continue forty and two months (Revelation 13:5).”
The Holocaust - Wikipedia
Ninth Fort massacres of November 1941 - Wikipedia (25 November 1941)
Victory in Europe Day - Wikipedia (8 May 1945)
“And the ten horns which thou sawest upon the beast, these shall hate the harlot, and shall make her desolate and naked, and shall eat her flesh, and burn her with fire (Revelation 17:16).”
“On Oct. 13, 1943, one month after Italy surrendered to Allied forces, it declared war on Nazi Germany, its onetime Axis powers partner.”
Oct. 13, 1943 | Italy Switches Sides in World War II