 And the reasoning being that in Isaiah 44, the Bible tells us that Cyrus would be the servant of God who would lead the people or let the people go back to the land to rebuild their city and so forth. So they say the 490 years began when Cyrus made the first decree. You know when that was? 536 B.C. Okay, let's take that. Let's say it began in 536 B.C. and it went from there.