The Remote were brought to Anathema in 1799 after Ordifica was destroyed by the Second Wave. (PROSE: Interference, The Book of the War) Around this time, Father Self deposited Giordano Bruno onto Anathema to integrate into the Remote. (PROSE: De Umbris Idearum)
The central focus of Anathema was the transmitter which held "the media", a medium through which all occupants of Anathema received the signals.
By the time that Anathema arrived in local Earth space, Laura Tobin and a perfect remembered clone of Fitz Kreiner had been re-remembered through the use of remembrance tanks and had (relatively) new identities as Compassion and Kode. (PROSE: Interference)