The ancient Mesopotamians, considered one of the earliest civilizations, had kitchens that incorporated built-in spice racks. Mesopotamian cuisine relied heavily on the use of spices like cumin, coriander, and fenugreek to enhance the flavors of their dishes. The kitchens of ancient Mesopotamia featured built-in spice racks with compartments and jars to store these spices. These spice racks were often made of clay or stone and were an essential part of the kitchen setup, ensuring that the spices were readily available for cooking.