As mentioned previously, the seven-headed beast of Revelation 13 has been interpreted by some to be the Roman Empire with its first seven emperors: Julius Caesar, Augustus, Tiberius, Gaius, Claudius, Nero and Vespasian (excluding the three emperors who rose to power for a short time between Nero and Vespasian. It’s not a perfect fit, since three are subjectively eliminated from the interpretation, but this is one of its interpretations. A more widely accepted but also a modern interpretation is that the seven-headed beast represents seven resurrections of the Roman Empire (1-Justinian; 2-Charlemagne; 3-Otto the Great; 4-Charles V; 5-Napoleon; 6-Hitler), with the seventh and final resurrection being yet future. There are other variations of the above, but in essence these are the interpretations of most modern end-time enthusiasts. What can be said of these things?
According to Revelation 13:1, John stood upon the sand of the sea, and he saw a beast rise out of the sea. This same beast had seven heads and ten horns with crowns upon its horn, and upon the heads was written the name of blasphemy. The sand on the seashore represents the great number of people in the nations (Revelation 20:8), and the sea represents the wicked of the land: “But the wicked are like the troubled sea, when it cannot rest, whose waters cast up mire and dirt” (Isaiah 57:20). The sea, therefore, represents the loud cries of those in rebellion (Isaiah 17:12). It is out of such a context as this that the beast arises (Revelation 11:7; 17:8), and it was out of such a context that Daniel’s four great empires arose (Daniel 7:2-3).
This beast appears to be somewhat like the dragon of Revelation 12, but the two are different, at least in some respects. The beast of Revelation 13 also bears a resemblance of the beast of Revelation 17, but they, too, are different in some respects. Nevertheless, all three beasts have seven heads and ten horns (Revelation 12:3; 13:1; 17:3), so in other respects they appear the same. What can be said of these things?
If we are able to believe what the Scriptures say about Scripture more than what men interpret history to say about Scripture, then we may get a different picture from this chapter of the Apocalypse than what we have been told. In the words of Sir Author Conan Doyle: “When you have eliminated the impossible, whatever remains, no matter how improbable, must be the truth.” In the context of the beast of Revelation 13, how could we apply this concept? Well, the bear’s feet Revelation 13:2 probably represent the second kingdom of Daniel 7, while the leopard’s (body), no doubt, represents the third kingdom of Daniel 7, but the mouth represents the first kingdom. These have been interpreted to be Babylon (first kingdom), Persia (second kingdom) and Greece is the third kingdom, and I have no reason to take issue with this interpretation.
Nevertheless, the Apocalypse presents them differently from what we can see in Daniel 7. Only parts of these kingdoms are mentioned in Revelation 13, and not at all in Revelation 12 or 17. Notice that the dragon of Revelation 12 has the crowns upon the heads, while the beast of Revelation 13 have the crowns upon the horns. Clearly, the 10 horns represent the same 10 horns mentioned in Daniel 7 for the fourth kingdom, and most scholars interpret the fourth kingdom to represent Rome. Horns represent power, so they point to the power of the Roman Empire in some manner, in the context of Daniel’s fourth beast being Rome.
What this tells me is without the power of the horns, or the authority vested in the horns by the dragon, the beast would have no power or authority over “all tribes, and tongues, and nations” (Revelation 13:7), which included the power to persecute the saints. It would be impossible for the beast of Revelation 13 to be Rome, because, in the context of the Apocalypse being fulfilled not long after it was written in the first century AD (Revelation 13:1, 3; 22:10, 12, 20), the beast was destroyed in the lake of fire (Revelation 19:19-20; cf. 20:10, 14). Yet, Rome was not destroyed in the first century AD.
Well, this is what we know to be impossible, according to the Scriptures,. What is left to consider? The only Biblical entity left that was, indeed, destroyed in the first century AD (70 AD) was Jerusalem, the Temple and the Jewish nation in her apostate, unbelieving condition. No matter how improbable this is to believe, this **must** be the truth, if the Apocalypse was fulfilled in the first century AD. This understanding should become clearer in succeeding studies.
 The sea or the “troubled sea that cannot rest” is not The Bottomless Pit, per se, but it is due to the efforts and cries of the wicked (viz. the troubled sea of Isaiah 57:20 and the rebellious people of Isaiah 17:12) that the beast arises out of the bottomless pit.
 Quote from: The Sign of Four; chapter 6, page 111; a mystery about the investigations of Sherlock Holms (1890).