The Early Neolithic was a revolutionary period of British history. Beginning in the fifth millennium BCE, it saw a widespread change in lifestyle as the communities living in the British Isles adopted agriculture as their primary form of subsistence, abandoning the hunter-gatherer lifestyle that had characterised the preceding Mesolithic period. Archaeologists have been unable to prove whether this adoption of farming was because of a new influx of migrants coming in from continental Europe or because the indigenous Mesolithic Britons came to adopt the agricultural practices of continental societies. Either way, it certainly emerged through contact with continental Europe, probably as a result of centuries of interaction between Mesolithic people living in south-east Britain and Linear Pottery culture (LBK) communities in north-eastern France.