The White Horse at Uffington in Oxfordshire is a 300ft figure which has been scoured in the chalk into the shape of a horse. Many local residents do believe, however, that it is in fact a representation of a cat. It has also been suggested that it is a dragon.
The image was first recorded in the 12th Century BC where it was mentioned along with Stonehenge as a "Wonder of Britain." Theories about why the horse was made and by whom vary enormously. Medieval Christians believe it is the horse that Saint George rode when he defeated Paganism. Other believe it was cut to celebrate the defeat of the Danes in the 9th Century by King Alfred. However, the common theory among modern scholars is that the horse is thought to have been made around the 1st Century BC as its design is similar to that on Celtic coinage in circulation at that time.
However, a new technique pioneered and applied by Oxford University archaeologists (1996) appears to show that the figure is in fact Late Bronze Age. Somewhere around 1,400 to 600 BC. The reason for construction though is still unclear.