Module D_Archival research looks into historical research. By examining primary sources such as maps, documents, photographs, and records, archival research provides a direct link to the past, allowing researchers to reconstruct narratives and uncover new perspectives. This method is essential in fields like history, urban planning, and environmental studies, as it offers insights that secondary sources often overlook. Archival research not only preserves valuable historical data but also enables a deeper, more nuanced understanding of how past events shape the present, offering a critical foundation for informed decision-making and future planning. In this module, we will look at researching history from the perspective of urban planners and designers. We will use historical lens as a tool, not only to interpret the past of a site, but also using them as tools and instruments to shape the future.