This document provides an overview of territorial, technical, and cultural changes in the 19th century and their effects on city design. It discusses how the invention of trains and factories led to rapid urbanization and population growth. New building materials like cast iron enabled open floor plans and large interior spaces. Culturally, Neoclassicism emerged as the dominant style, though some movements sought national identity through local revivals. The document provides examples of Neoclassical works like Ledoux's ideal city plan, Jefferson's University of Virginia campus design, and Schinkel's Altes Museum in Berlin to illustrate these trends in architecture during this time period.