The kingdoms represented by the second and third Beasts, or the Bear and Leopard, are again described by Daniel in his last Prophecy written in the third year of Cyrus over Babylon , the year in which he conquered Persia. For this Prophecy is a commentary upon the Vision of the Ram and He-Goat.
Sir Isaac Newton (2016). “Observations upon the Prophecies of Daniel, and the Apocalypse of St. John”, p.112, Library of Alexandria