11th century

The 11th century was chiefly notable, in England at least, for being the setting of the Battle of Hastings. Though well-known as a point of conflict between two Time Lords, the First Doctor and the Monk (DW: The Time Meddler), the history-changing battle also provided the backdrop for some hidden human truths. At some point after 1066, the Sixth Doctor and Peri Brown discovered that King Harold, the Saxon leader the Doctor believed had died on the battlefield at Hastings, was still alive. Godwinson had his mother and wife, Gytha and Edith Swan-Neck, deliberately misidentify his body so that he could slip off the battlefield un-noticed. Adopting the name of Hereward the Wake, he then spent many years after Hastings as the leader of a guerrilla insurgency. His resistance, although ultimately unsuccessful in overthrowing the Normans, kept Saxon culture alive, and became one of the reasons that it was remembered centuries later. (DWAN: The Real Hereward)

During this century, an "amoral Time Lord" (possibly the Monk) altered history by providing King Canute, which allowed him to turn back the tide and gain greater influence over Saxon England than he would have done otherwise. The Eighth Doctor set history back on its correct course. (BFA: Invaders from Mars)

The Fifth Doctor, Adric, Nyssa and Tegan Jovanka took a trip to rural Eastern Europe at some point early in the century and met a Tsar. (ST: The Immortals)

On the Indian subcontinent, the Pact of Chib was signed this century, and the creation of the Gelem warrior was thus averted. (NSA: Ghosts of India)

Outside of Earth, the Centaurian Catastrophe, possibly a result of Anubian invasion, (K9TV: Curse of Anubis) occured around the middle of the century, driving the Aeolians to near-extinction. (K9TV: Aeolian)