Eastern Arabia was historically known as Al-Bahrain (Arabic: اَلْبَحْرَيْنِ) until the 18th century. This region stretched from Bubiyan Island along the Persian Gulf coast and included the regions of Bahrain, Kuwait, Eastern Saudi Arabia, United Arab Emirates, Qatar, and Northern Oman. The entire coastal strip of Eastern Arabia was known as "Bahrain" for ten centuries.
Until very recently, the whole of Eastern Arabia, from Bubiyan Island to the mountains of Oman, was a place where people moved around, settled and married unconcerned by national borders. The people of Eastern Arabia shared a culture based on the sea; they are seafaring peoples.
The Arab states of the Persian Gulf are solely Eastern Arabia,[page needed] the borders of the Arabic-speaking Gulf do not extend beyond Eastern Arabia.[page needed] The modern-day states of Bahrain, Kuwait, Oman, Qatar and UAE are the archetypal Gulf Arab states. Saudi Arabia is often considered a Gulf Arab state although most of the country's inhabitants do not live in Eastern Arabia with the exception of the Bahrani people who live in Qatif and al-Hasa oases and who historically inhabited the entire region of Eastern Arabia before the establishment of the modern day political borders.