I challenge you. I challenge you to think of a report that doesn’t rely on a date somewhere in it. Thought of one? If you did, is the information in the report actually valuable without some type of date range boundary? Even in academia and clinical research, where groundbreaking reports are published and stand up to scrutiny for decades, researchers still clearly call out the dates in which the data was collected. They do this because they know the results of their experiments were valid for the date and time they were collected, but could still change at any time. Remember: it was a scientifically held belief that the Earth was the center of the universe for a long time.