Who is recognized as the first noted urban planner that introduced the grid system and the agora?

Hippodamus is recognized as a pioneering figure in urban planning, particularly for his development and implementation of the grid system in city layouts. He is often referred to as the "father of urban planning" due to his systematic approach to city design, which included the use of a grid to organize streets and allocate land efficiently. This method enhanced traffic flow and organized communal spaces, making cities more functional and livable.

In addition to the grid system, Hippodamus is credited with introducing the concept of the agora, a central public space that served as a marketplace and a venue for social interaction, civic engagement, and political discourse. The agora was a vital part of Greek city life, fostering community and serving as a hub for commerce and culture. His ideas significantly influenced the development of many Greek cities, establishing a foundation for urban planning principles that are still relevant today.