In general, Continental Freemasonry is sympathetic to Freemasonry amongst women, dating from the 1890s when French lodges assisted the emergent co-masonic movement by promoting enough of their members to the 33rd degree of the Ancient and Accepted Scottish Rite to allow them, in 1899, to form their own grand council, recognised by the other Continental Grand Councils of that Rite. The United Grand Lodge of England issued a statement in 1999 recognising the two women's grand lodges there to be regular in all but the participants. While they were not, therefore, recognised as regular, they were part of Freemasonry "in general". The attitude of most regular Anglo-American grand lodges remains that women Freemasons are not legitimate Masons.

Answer this question, if possible (if impossible, reply "unanswerable"): When did the United Grand Lodge of England recognize the two female Masonic lodges?
1999