National Day 1977 (Khor Rori Inscriptions)

This stamp focuses on Oman’s profound archaeological legacy, ancient global trade routes, and deep civilizational identity by depicting a stone block unearthed at Khor Rori bearing South Arabian inscriptions from $100\text{ BCE}$. The subject highlights the history of Sumhuram, the ancient fortified port city in Dhofar that served as the absolute heart of the global frankincense trade network connecting Arabia with Rome, India, and Egypt.