what does "mark the date"mean? does it mean "record/remember the date?"
Fourteen years since the war! Did you mark the date? What a long way we have traveled, as peoples, from that bitterness! Again, my dear Martin, let me embrace you in spirit, and with the most affectionate remembrances to Elsa and the boys, believe me,

Question

Answer

Sort of ok but the whole paragraph isn't natural English, at least not as I know it.

Answer

Yes it means to remember the date.