Miletus introduced innovative city design principles that reserved space for which of the following?

The correct answer highlights the comprehensive approach taken by Miletus in urban planning, which was significant for its time. Miletus, known as one of the prominent ancient Greek cities, is credited with introducing the grid plan, a systematic layout that facilitated better organization of spaces within the city. This design reserved areas for diverse activities, showing an understanding of the multifaceted needs of urban life.

Miletus adeptly allocated land for public buildings, private residences, commercial activities, and religious structures. This integration of different functions within a single urban environment not only promoted social interaction and economic activity but also emphasized the importance of public spaces, contributing to the overall civic life of the citizens. The city planning principles established in Miletus set a precedent for later urban designs in other parts of the world and influenced the development of the ideal city in subsequent eras.

In contrast to this encompassing vision, the other choices present a more limited scope. The option indicating "only public purposes" ignores the necessity of private and commercial spaces that contribute to a vibrant city life. Similarly, focusing exclusively on residential areas or limiting it to commercial zones would fail to capture the complexity and interdependence of various functions essential for a thriving urban center. Thus, Miletus's innovative