This document discusses the history and modern practices of ship routing. It begins by describing early Phoenician navigation using stars and primitive charts. Modern routing uses electronic tools like radar, satellite navigation, and vessel traffic services to increase safety and efficiency. Factors like weather, currents, and traffic patterns are considered to determine optimal routes. Common software used for routing includes Netpas, QGIS, and ArcGIS, which provide forecasting, digitized weather data, and port distance tables to aid route planning. The goal of routing is to safely and economically guide ships from hazards while minimizing time and fuel costs.