The Nabateans (300 BCE to 106 CE) were Arabian nomads from the Negev Desert who "amassed their wealth first as traders on the Incense Routes which wound from Qataban (modern-day Yemen) through neighboring Saba (a powerful trade hub) and on toward Gaza on the Mediterranean Sea."
Some archaeologists think the Queen of Sheba was a Sabaean. I was informed by a DJ in Jamaica that the Rastas sing about the Queen of Sheba bringing ganja to King Solomon.