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Years of interest

The 9th century was when the Doctor liked to get his milk. According to the Tenth Doctor, he went to "nice little farm" in France, at least until the milkmaid developed boils on her hands. (COMIC: Wrath of the Warrior)

At some point in the century, the Second Doctor, Ben and Polly arrived in Baghdad, having been chased there by the Cat-People. (PROSE: Invasion of the Cat-People) The Library of St John the Beheaded was founded sometime this century. (PROSE: All-Consuming Fire) The Fifth Doctor and Amy visited Sudan in this century in search of the fifth segment of the Key to Time. (AUDIO: The Destroyer of Delights)

This century also saw the death of Ashildr, a Viking girl who was brought back to life by the Twelfth Doctor, accompanied by Clara Oswald, through a Mire repair kit, having gave her life to repel a Mire attack on her village. As the kit would never stop repairing her, Ashildr was rendered effectively immortal. (TV: The Girl Who Died) She would thus live beyond well beyond the average lifespan of a human, to the end of the universe. (TV: Hell Bent)

The Flood was sealed in a glacier on Mars by the Ice Warriors in this century. (COMIC: The Wolves of Winter)

The Battle of Hope Valley was dated to the 9th century (WC: Case File Eleven)

It was in this century that a reconnaissance scout Dalek arrived on Earth, becoming possibly the first Dalek to ever arrive on the planet. It was met with the force of a human army and the Battle of Hope Valley ensued. When the humans won the battle, three custodians were trusted to hide the separated parts of the Dalek in the farthest corners of the Earth. The Third Custodian was shot by bandits on his journey across a valley that would later become Sheffield. (TV: Resolution)

The Varangians were 9th century Russian Vikings. Kate Wilson believed that they sounded like something out of Star Trek. (AUDIO: The Conspiracy)

As with most centuries of the first two millennia, the 9th century was home to Jack Harkness, Amy Pond and an Auton duplicate of Rory Williams. A version of Jack from around the time of the deaths of Toshiko Sato and Owen Harper existed in this century, having been buried alive in the 1st century by his brother, Gray. He perpetually died and resurrected an unknown number of times in an earthen tomb underneath Cardiff. (TV: Exit Wounds) Meanwhile, a near-dead Amy Pond was kept alive inside the Pandorica, beginning in the 2nd century. An Auton version of Rory kept vigil near her the entire time. They both awaited a moment in the mid-1990s when a young Amelia Pond would touch the outside of the Pandorica and restore Amy to full health. (TV: The Big Bang)

It was substantially unclear whether the events of the subsequent Big Bang Two erased Amy and Rory's presence in the 9th century. This ambiguity was caused, in part, because the non-Auton, married Rory Williams claimed to have remembered being "made of plastic" at his wedding reception, suggesting that, at least inasmuch as he was concerned, he and Amy were present in the 9th century. (TV: The Big Bang) Amy seemed to also remember those events, and displayed a fondness for the Auton Rory both during her honeymoon (TV: A Christmas Carol) and during a kind of lullaby to her newborn child Melody Pond. (TV: A Good Man Goes to War)

Behind the scenes[]

Although not stated in The Girl Who Died, the television story The Woman Who Lived, set in 1651, has Ashildr mentioning that she had 800 years of adventure, placing the former around this century.