It is therefore still possible in a timeless universe to speak of a date in time, such as the Battle of Marathon in 490 B.C., as long as such that time is clearly separated from physics, and confined to the sphere of man-made historical science and its conventions. That is, when we understand that the year is a measure for revolutions of a planet around the sun, and that our planet was measured by historians as having completed some 2510 revolutions since that event occurred, which we may read out from our catalogues that fix events to observations of physical revolutions. No real time is measured, rather observations of changes in seasons and nights and days are recorded by historians.
