What year was it when the battle of the red cliffs was on?
The winter of 208/209 AD
The Battle of Red Cliffs, otherwise known as the Battle of Chibi, was a decisive battle at the end of the Han Dynasty, immediately prior to the Three Kingdoms period of Chinese history. It was fought in the winter of 208/9 AD between the allied forces of the southern warlords Liu Bei and Sun Quan and the numerically superior forces of the northern warlord Cao Cao.
"The cliffs (of Dover on the Brittish Coast) themselves are still under attack from the sea as its continuous flow eats away at the soft chalk at the base of the cliffs. About 2-5cm on average are lost each year, but more than a metre can be lost in one large cliff fall, and as sea-levels rise the cliffs will probably retreat more quickly"...National Trust http://www.nationaltrust.org.uk/main/w-index.htm