 Evidence was also obtained from the site that showed that the sea level of Bahrain during the late Neolithic era was much higher than present-day levels by as much as 4 m with some speculating that Al Markh was itself an islet.Potteries found on the site were dated to 3,800 BC.It is assumed by archaeologists that the site did not host permanent settlements but rather, it was occupied seasonally by fishermen and hunters.