Early development of hospitality in sumerian period?

During the Sumerian period, which dates back to around 4500 to 1900 BCE, hospitality began to take shape as a crucial aspect of social and economic life. Sumerians established inns and guest houses, known as "karum," primarily for traders and travelers, facilitating commerce and cultural exchange. These establishments provided basic accommodations and meals, reflecting the Sumerians' value on hospitality and community. The development of such services laid the groundwork for the evolution of the hospitality industry in subsequent civilizations.