17 years, from 1486 until 1503. The exact date is not known, mainly because it was such a long time ago.
There should have been 6503 but since there was no year zero, the answer is 6502.
1497-1503
1503 and was finished by 1506, Can you say tnx?
From it was begun in 1503 until Leonardo's death in 1519.
38 years ago
13010 years ago
42 years ago
fourscore and seven years ago means 87 years ago
Well, honey, if you're asking how many years ago 5000 years ago was, the answer is pretty straightforward. 5000 years ago was, surprise surprise, 5000 years ago. Time may fly, but math is pretty consistent.
558 years ago.
49 years ago (as of 2017 !)