So after some very long winded research.. I would love to thank Beeradvocates for this simple history, for someone who is learning about beer !
During the middles ages, Germanic tribes brewed, using the resources they had including wheat and barley. These grains where lighter than the traditional beers brewed at that time. These light beers where termed "white beer" aka weisse. Today their are four main styles of white beer: German Weissbier, Berliner Weisse, Beligan Witbier, and American Wheat.