Asia

Asia was an Earth continent. It was home to animals including elephants, rhinoceroses, wild boars, giant pandas, monkeys, and tigers.

In the late 20th century, amidst growing tensions between Russia and China, fighting broke out in southern Asia and South America before Sir Reginald Styles was able to negotiate peace, cooling the crisis and preventing World War Three, with the Third Doctor preventing an alternate timeline where Styles was assassinated and war did indeed come to pass. (TV: Day of the Daleks)

In the early 21st century, a Skullion ship crashed in central Asia on Earth and its crew were sold into slavery. (TV: The Man Who Never Was)

In the 2010s, North Asia was among the places where newly-hatched Zygons were settled across the world as part of Operation Double. (TV: The Zygon Invasion)

Following the plague sent by the Daleks during their 22nd century invasion of Earth, a majority of the population of Asia died before a cure was found. (TV: The Dalek Invasion of Earth)

At one point, Asia was home to one of the five ioniser bases keeping back the glaciers of the second Ice Age. (TV: The Ice Warriors)