2260s

At some point in the late 2260s, the Fourth Doctor visited the planet Aprilia III in a parallel universe and worked with Captain James T. Kirk to defeat the Cybermen. (COMIC: Assimilation²)

Earth
In 2268, democracy ended in the United Kingdom. (AUDIO: Antidote to Oblivion)

Other events
In 2267, in an alternate timeline, the Doctor visited Huttan. (PROSE: Spiral Scratch)

In 2269 a Garaman hid inside the pages of a manual for a space cargo ship nearly leading it to crash. The Eleventh Doctor was able to defeat the Garaman by using the TARDIS's translation circuits to confuse the creature's own identity enabling it to be jettisoned into space. (COMIC: By the Book)