Connecting pathways are essential for cultural and economic exchange. Commonly, historians investigate the role of routes for cultural development, whereas the environmental impacts of historical routes attract less attention. Here, we present a high-resolution reconstruction of the impact of the major trade route via Marchionis in the southern Baltic lowlands on landscape evolution since more than 800 years. We combine precisely dated annually laminated sediments from Lake Czechowskie alongside via Marchionis and pollen data at 5-year resolution together with historical data. The transformation from a quasi-natural to a cultural landscape occurred in three phases (1) an early phase until the mid-fourteenth century with slowly increasing human impact. (2) an intensification of environmental disturbance until (3) the mid-nineteenth century when via Marchionis became a modern traffic route with strong environmental impacts. Superimposed on the long-term development were repeated interruptions by short-term downturns related to societal crisis and political decisions.

Connecting pathways are essential for cultural and economic exchange and play an important role in human life. Commonly, historians investigate the role of routes for cultural development, whereas the environmental consequences of historical route construction attract less attention. Here we present, for the first time, a high-resolution reconstruction of the impact of the major trade route via Marchionis in the southern Baltic lowlands on landscape evolution since its construction more than 800 years ago. We utilize precisely dated annually laminated lake sediments from Lake Czechowskie located alongside Via Marchionis to establish multiproxy data at 5-year resolution for an integrated interpretation with historical data. The transformation from a quasi-natural to a cultural landscape was promoted by the operation of Via Marchionis and occurred in three main phases. Superimposed on the long-term development were repeated interruptions by short-term downturns related to societal crisis caused by wars and partly overlapping with climatic deterioration.

the editor of Historical Atlas of Polish Towns. His scientific interests include the history of the towns in the Middle Ages, the history of the military orders with particular focus on the activity of the Teutonic Order by the Baltic Sea, and the history of cartography

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This article presents comparative research on the role of towns and urban networks in the process of constructing space during conquest and colonization in selected ‘non-Roman’ regions of Europe in the twelfth and thirteenth centuries. It focuses on Kulmerland in Prussia and Meath in Ireland. In both regions, the creation of urban networks and new regional spaces entailed the use of pre-existing settlement. However, reception intensity was determined by both the state of preservation of the earlier settlement and the needs of territorial authorities. This comparison shows ways of using symbolic potential (names, central places) and former settlement points for the construction of cities. In both territories, the functions of central places were particularized due to subinfeudation.