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The severe aridity on the Arabian Peninsula, in 6th century A.D., and the other, already known factors, contributed to the downfall of an ancient kingdom, leaving the region fractured and unstable.

United kingdomRaymonds bradleyMatthew jacobsonChristophc raibleStephenj burnsR lawrence edwardsDominik fleitmannJohn haldonChai chengUniversity of massachusettsUniversity of readingXian jiatong university chinaUniversity of basel department environmental sciencesPrinceton universityUniversity of minnesotaUniversity of basel