This deliverable aims to reconstruct the environmental histories and long-term landscape trajectories of the eight REWRITE European Demonstrator Sites (DMs) in order to understand the socio-ecological foundations that shape pathways for rewilding intertidal ecosystems. By situating contemporary rewilding initiatives within their historical and cultural contexts, this report seeks to clarify how past land uses, policy decisions, and environmental dynamics have produced current landscape configurations and ecological states. A central objective is to identify recurring evolution patterns, pivotal moments of transformation, and the societal values that have influenced coastal management over time. The rationale of this report lies in the recognition that coastal wetlands and intertidal areas are socio-ecological systems co-produced by centuries of interactions between natural processes (tides, sediment dynamics…) and human interventions, including land reclamation, navigation infrastructures and resource exploitation. Understanding these long-term trajectories is essential for revealing the historical roots of both ecological degradation and opportunities for restoration. The emergence of rewilding practices within the DMs is examined through this lens to assess how historical contingencies shape contemporary narratives of change and inform potential pathways for future coastal governance. Methodologically, this work combines geo-historical analysis with spatial and temporal mapping. The approach follows three main steps: (1) systematic archival research and documentation of historical metadata; (2) georeferencing and digitizing historical maps and documents within GIS; and (3) diachronic spatial analysis to identify patterns of continuity, disruption, or bifurcation in landscape evolution. Multiple historical sources (early cartography, engineering plans, artworks, aerial photography, written archives, press documents, and oral histories) are assembled and interpreted to produce detailed timelines for each site. Two analytical scales are mobilized: a large DM scale for understanding major landscape transformations and a small scale for specific sites where significant changes or rewilding initiatives have occurred. Across Europe, the analysis highlights both site-specific trajectories and shared trends. Early land uses were predominantly extractive (grazing, agriculture, salt production, or oyster farming) often leading to extensive land reclamation through diking and drainage. In the twentieth century, industrial development, intensified urbanization, and the expansion of transport and port infrastructures altered sedimentation regimes and reshaped intertidal environments. Extreme events, such as major storm surges, contributed to shifting risk perceptions and the development of new coastal protection and restoration policies. In several sites, notably Aveiro and Cádiz, the decline of traditional salt production created conditions for passive rewilding and heritage revalorization. Across sites, the late 20th century witnessed a decline in traditional land uses, accompanied by growing environmental awareness and new cultural representations of coastal landscapes. Former productive landscapes have increasingly been reframed as heritage sites or ecological assets, fostering the emergence of experimental, policy-driven, or spontaneous rewilding initiatives. Local-scale analyses reveal that ecological restoration often follows phases of landscape degradation and is strongly influenced by land ownership patterns and institutional frameworks. Overall, the comparative reconstruction of landscape trajectories provides insights into the diverse temporalities and socio-ecological drivers that condition rewilding opportunities and barriers in European intertidal ecosystems.