Sephardi is a term used to refer to Jews who live(d) in Sepharad, the ancient name for Spain, mainly after the Roman exile. As Solomon did not live in Spain, nor was from Spain, he was not a Sephardi Jew.
If by Sephardi Jews you mean Spanish Jews displaced following the Spanish inquisition, they and their descendents constitute somewhat less than 1,500,000 which is 25% of the Jewish population in...
Sephardi Jews traditionally come from Spanish speaking countries: Spain, Morocco. Jews from Portugal and Italy are also often considered Sephardi.Ashkenazi Jews traditionally come from Eastern...