In the winter of 1853–54, unusually low water levels in Swiss lakes exposed rows of wooden piles.Subsequent investigations revealed prehistoric settlements preserved beneath the sediments. Instead of kings, warriors and monuments, these sites revealed homes, food, tools, farming practices and the routines of ordinary people who lived thousands of years ago.Even today, over 170 years later, the pile-dwelling discoveries are regarded as some of the most important archaeological finds relating to prehistoric Europe.An unexpected find revealed by droughtThe discoveries started during the winter of 1853–54, a period of unusually low water levels across Swiss lakes, including Lake Zurich. The exposed lake beds revealed rows of wooden piles.Ferdinand Keller argued that the piles belonged to prehistoric lake dwellings, sparking excitement throughout Europe, among both the public and the scientific community.Archaeology was a young science at this point; researchers were beginning to understand Europe's distant past. The Swiss discoveries provided an unprecedented insight into communities that predated written history.News spread quickly and sites were found throughout the Alpine region, including present-day Germany, Austria, France, Italy and Slovenia.Timber logs turned into entire settlementsExcavation soon showed that the wooden stakes were not simply isolated remnants.They were part of settlements dating between around 5000 BC and 500 BC, and archaeologists began to uncover houses, pathways and settlement layouts preserved beneath lake sediments.According to UNESCO, these sites provide some of the most important evidence we have for early farming societies during Europe's Neolithic and Bronze Ages. There are hundreds of known pile-dwelling sites, 111 of which were listed by UNESCO in 2011.What made these sites so valuable was not just the age of the settlements, but the remarkable condition in which they survived. Water's preserving powersUnder normal conditions, wood, textiles and plant remains usually decay quickly. They are normally destroyed over time. In the case of these Alpine sites, however, being preserved in waterlogged conditions with a low oxygen environment helped wood, textiles, plants and bone survive for thousands of years. Food, tools, and elements of architecture and agricultural practice were discovered at archaeological excavations.The UNESCO World Heritage listing highlights that these remarkable preservation conditions mean that the sites offer an unusually detailed picture of the early farming way of life, including the different modes of farming, animal husbandry, the exchange networks and the development of techniques.The organisation Palafittes oversees the sites and describes their well-preserved organic content-wood, textiles, plant matter and bones-as a rarity. For researchers, it was like finding an archive of the past.The discoveries changed how archaeologists studied prehistoric Europe Before the Alpine discoveries, much of what archaeologists knew about prehistoric Europe came from burial sites, monuments and durable artefacts.The Alpine pile-dwelling settlements brought ordinary life to the forefront. The sites allow archaeologists to study what people ate, how they arranged their settlements, their farming and livestock practices and how communities adapted to changing conditions over centuries.The UNESCO statement of Outstanding Universal Value emphasises that the sites are of exceptional importance for understanding the living arrangements and relationship of the early farmers to their environment over almost five millennia. Extensive trading networks between settlements have also been revealed, with archaeological evidence showing that exchange networks operated across the Alps using goods such as flint, shells, amber, pottery and more.A well-known image turned out to be only partially accurateThe most commonly pictured scene is one of prehistoric European villages built directly on top of lakes. This, however, is largely a myth.Archaeological work has shown that many were built in marshy areas at the water's edge, in wetlands, or on land susceptible to seasonal flooding, not directly on open water. It was rising lake levels over many years that later submerged these sites, giving them the appearance of having been built in lakes from the very start.This detail is significant, showing that humans adapted to changing environments as opposed to simply building structures in them.Why the stakes still matterThe initial find in 1854 is extraordinary because it allowed archaeologists to ask entirely different questions of prehistory. No longer are their subjects only great rulers, warfare and monumentality. With the Alpine settlements, archaeologists can now reconstruct the everyday lives of ordinary people.Here, researchers can find out exactly what those prehistoric people ate, how their societies were structured, how they farmed their crops, raised livestock, and dealt with environmental changes over time.It's perhaps hard to believe that a handful of wooden stakes sticking out of a Swiss lake would prove to be one of the greatest archaeological discoveries in Europe, but that's precisely what they did. They provide one of the clearest pictures of everyday life among prehistoric farming communities in Europe.Catch the latest world news and top headlines. Download the TOI App.