The part played by the Mitanni people of Aryan speech in distributing Asiatic culture throughout Europe may have been considerable, but we know little or nothing regarding their movements and influence, nor has sufficient evidence been forthcoming to connect them with the cremating invaders of the Bronze Age, who penetrated as far as northern Scotland and Scandinavia. On the other hand it is certain that the Hittites adopted the planetary system of Babylonia and passed it on to Europeans, including the Greeks. The five planets Ninip, Merodach, Nergal, Ishtar, and Nebo were called by the Greeks after their gods Kronos, Zeus, Ares, Aphrodite, and Hermes, and by the Romans Saturnus, Jupiter, Mars, Venus, and Mercurius. It must be recognized, however, that these equations were somewhat arbitrary. Ninip resembled Kronos and Saturnus as a father, but he was also at the same time a son; he was the Egyptian Horus the elder and Horus the younger in one. Merodach was similarly of complex character--a combination of Ea, Anu, Enlil, and Tammuz, who acquired, when exalted by the Amoritic Dynasty of Babylon, the attributes of the thunder god Adad-Ramman in the form of Amurru, "lord of the mountains". During the Hammurabi Age Amurru was significantly popular in personal names. It is as Amurru-Ramman that Merodach bears comparison with Zeus. He also links with Hercules. Too much must not be made, therefore, of the Greek and Roman identifications of alien deities with their own. Mulla, the Gaulish mule god, may have resembled Mars somewhat, but it is a "far cry" from Mars-Mulla to Mars-Nergal, as it is also from the Gaulish Moccus, the boar, called "Mercury", to Nebo, the god of culture, who was the "Mercury" of the Tigro-Euphrates valley. Similarly the differences between "Jupiter-Amon" of Egypt and "Jupiter-Merodach" of Babylon were more pronounced than the resemblances.