Best known for his advancements in scientific thought Sir Isaac Newton was also big into his apocalyptic prophecy. Largely unknown and unpublished documents, evidently written by Isaac Newton, indicate that he believed the world could end in 2060 AD. (He also had many other possible dates e.g. 2034). Despite the dramatic nature of a prediction of the end of the world, Newton may not have been referring to the 2060 date as a destructive act resulting in the annihilation of the earth and its inhabitants, but rather one in which he believed the world was to be replaced with a new one based upon a transition to an era of divinely inspired peace. In Christian theology, this concept is often referred to as The Second Coming of Jesus Christ and the establishment of Paradise by The Kingdom of God on Earth. In his posthumously-published Observations upon the Prophecies of Daniel, and the Apocalypse of St. John, Newton expressed his belief that Bible prophecy would not be understood "until the time of the end", and that even then "none of the wicked shall understand". Referring to that as a future time ("the last age, the age of opening these things, be now approaching"), Newton also anticipated "the general preaching of the Gospel be approaching" and "the Gospel must first be preached in all nations before the great tribulation, and end of the world". (Wikipedia)

Some great extra reading on Newton's passion for Biblical prophecy and the date of 2060 AD can be found here on the isaac-newton.org website

Also see in HTML and text version here on the Internet Archive via Project Gutenberg.