The Garamantians also had iron weapons, war elephants, and were known for irrigation systems and underground mines. According to Herodotus, the worship of Poseidon originated in Libya and influenced the Greeks. The Egyptians and Greeks both shared some of the same gods, some of which were the same gods as the Libyans. The Garamantians believed in nymphs and are also said to worship Poseidon, but other than that, not much is known of their beliefs. They most likely worshipped the same gods as many other Berber cultures, such as Ammon, Illu, and the god Neith, who was also in ancient Egyptian polytheism. There is little textual information about the Garamantians, other than some Roman sources, but it is known from archaeological findings that they vanished in 700 AD, but their descendants were the Tuareg people.