Historical and contemporary human activity has profoundly influenced the composition of forests in the densely populated region of Central Europe. Remaining forest in Central Europe today is not generally considered natural forest, but rather a cultural landscape created over thousands of years which consists almost exclusively of replacement communities. The oldest evidence of human and forest interaction in Central Europe is the use of hand axes about 500 thousand years ago. The degree of hemeroby (human influence) and the extent of the original natural state from so long ago is difficult to estimate. It is believed that during glacial times during the ongoing ice age Central Europe was largely deforested and, in the period of "natural" re-emergence of the forest, since the end of the last glacial period, the Würm glaciation (about 11 700 years BP), people began to play a part transforming the potential natural vegetation. Sedentary, Neolithic farmers of the Linear Pottery Culture, about 7 500 years ago, began to change the forested landscape massively.