We know dating isn't rocket science but sometimes it's nice to just have a little help and guidance.
Law enforcement is a necessary but limited means of drug control, as we know dating back to the days of prohibition.
For the 65 non-Porton Down veterans for whom we did not know date of enlistment, we counted person years from the same date as for the corresponding Porton Down veteran.
For the 5914 cases for which we know the date of the last menstrual period (DLMP), we estimate the date of conception as occurring 2 weeks after the DLMP before the focal pregnancy.
We know the date – 10 January 1992 – but not the hour.
That we know the date is part of the jarring incongruity of the story.
As far as we know to date — and this could well change — we are not in a recession.
We know the date because she wrote it at the end of the manuscript, in her slanting hand.
And, the authors wrote, "We know the date of the frescoes because a volcanic eruption stopped the clock, much as was the case in Pompeii".
We know the date from a glimpsed newspaper: 12th July 1941, at the time of the British-Soviet pact, and strategic alliances are of course to be very important, too, in Narnia's parallel universe.
