Dan 7:12

12 As for the rest of the beasts, their dominion was taken away: yet their lives were prolonged for a season and a time. 

as for the rest of the beasts…there lives were prolonged for a season and a time – the official Jewish Bible, JPS Tanakh 1917, also translates this as “a season and a time,” to describe the lifespan of the Babylon, Greek, and Roman Empires, from the first year of King Belshazzer (555 BC). We know that a “time” is one year, from “time, times and half a time” – (1 + 2 +1/2).  We can add, “a time” (1 year), and “a season” (3 months), to get 15 months. Using the day-year rule of Daniel and Revelation, we get 15 X 365.25/12 = 457 years.  This brings us to 98 BC. The Greek empire fell gradually between 168 BC and 31 BC, as the Romans defeated Greek states.