1908

On 30 June 1908, the energy created by the impact of a meteor which later became known as the Tunguska Event caused the Great Divide to open in Russia, allowing some of the Charrl to enter that time period from 22,000. (PROSE: Birthright) The Third Doctor attempted to take Liz Shaw and Jo Grant to witness the meteor impact but the TARDIS instead materialised in St Petersburg in December 1916. (PROSE: The Wages of Sin)

The Tunguska Scroll was recovered in the Tunguska Basin in Russia. (TV: Enemy of the Bane)
 * It is strongly implied that the scroll reached the Earth in Tunguska Event, which would place the recovery somewhere after June 30, the date of the impact.

Iyaphin the Destroyer left the Karabya jungle in British India. (AUDIO: The Emerald Tiger)

The Tenth Doctor and Donna Noble encountered the Koltroxa, who was destroyed in a paradox caused by meeting her alternate future self. (COMIC: The Time Stealer, The Battle for Time)