This document provides an overview and analysis of cities from ancient to modern times in order to inform the design of a future city. It examines the definitions, components, and characteristics of cities throughout history, including ancient cities like Mohenjo Daro and present-day cities like Sydney. Key aspects that make a city "good" are identified as resilience, inclusiveness, and authenticity. Sustainable practices are discussed as important considerations for future city development, with a focus on areas like sustainable energy, agriculture, and architecture. The document serves as background research to propose a new future city called ESPERO that addresses the shortcomings of the current city.