Daniel 9:23-24
Daniel’s “Seventy Weeks” Prophecy

Timeline
490 years from Abrabram to Exodus
490 years from Exodus to Solomon’s Temple
490 years from Solomon’s Tempe to Nehemiah’s Tempe
490 years from Nehemiah’s Tempe to Jesus

490 years from Reformation date 31 Oct 1517 to 31 Oct 2007. The devil changed it and make the world remembers it as Halloween.
http://www.wordofhisgrace.org/halloweenorreformationday.htm