6 May

6 May was a date.
In 1997, Bernice Summerfield first met the Doctor in his eighth incarnation. On the same day, the recently elected Prime Minister of the United Kingdom was assassinated in Washington DC. (PROSE: The Dying Days)
In 17,000, the last known Wirrn egg was stolen. A guide for time travellers reported that its "current whereabouts" were unknown. (PROSE: Time Traveller's Diary)