Early Islamization of Lampung from the 13th century from Pasai is evidenced by the tombstone of Malik Al Saleh written in 1297 and the Batu Brak Site at Hanibung in 688 Hijriyah.

The arrival of the four pious people is a setback from the Sekala Brak kuno with the last king, queen sekekhummong (Sekerummong), the Buay Tumi tribe, who is Hindu Birawa and animist.

[4] The spread of the Lampung tribe began in the 13th century AD following the marriage of the only daughter Queen sekekhummong, namely Sindi La Lalula in Islam, with the descendants of Kepaksian Pernong who settled in Batu Brak, together with Putri Indar Wati (Sibulan), who opened a new village in the area of Tulang Bawang Regency.

[6] Major crops include rice, orange (a growing sector), corn, cassava, soy bean and zallaca palm fruit.

As of 2010, the area under plantation in the regency is 298.943 hectares (738.70 acres), mainly rubber, coconut, oil palm and sugar cane.