I encourage you to visit these links to learn more about Great Danes.
http://www.ginnie.com/Danes.htm
http://www.ginnie.com/gdlinks.htm
http://www.danesonline.com/
The earliest written description of a dog resembling the Great Dane may be found in Chinese literature of 1121 BC, according to an article by Dr. G. Ciaburri in a Great Dane Club of Italy publication (1929).