Oldest Evidence of Kissing Dates Back Nearly 5,000 Years, According to New Research

The earliest mention of kissing dates back to at least 2500 B.C.E. in Mesopotamia and Egypt according to a new review of historical records.
Researchers found mentions of kissing in ancient Mesopotamian clay tablets, pushing back the first known records of kissing by 1,000 years.
Kissing was primarily practiced by married couples but also occurred between unmarried lovers, and may have unintentionally spread disease.
While kissing is not universal across all human cultures, it was relatively common in Mesopotamia and other ancient societies.
The discovery provides new insight into the history of romantic relationships and how ancient peoples expressed intimacy.