Sumer
Sumer () is the earliest known civilization in the historical region of southern Mesopotamia, modern-day southern Iraq, during the Chalcolithic and Early Bronze ages, and one of the first civilizations in the world along with Ancient Egypt and the Indus Valley. Living along the valleys of the Tigris and Euphrates, Sumerian farmers were able to grow an abundance of grain and other crops, the surplus of which enabled them to settle in one place. Prehistoric proto-writing dates back before 3000 BC. The earliest texts, from c. 3300 BC, come from the cities of Uruk and Jemdet Nasr; early cuneiform script emerged around 3000 BC.
Andalusia
Several theories postulate that the first hominids in Europe were in Andalusia, having passed across the Strait of Gibraltar; the earliest known paintings of humanity have been found in the Caves of Nerja, Málaga. The first settlers, based on artifacts from the archaeological sites at Los Millares, El Argar, and Tartessos, were clearly influenced by cultures of the Eastern Mediterranean who arrived on the Andalusian coast. Andalusia then went through a period of protohistory, when the region did not have a written language of its own, but its existence was known to and documented by literate cultures, principally the Phoenicians and Ancient Greeks, wide historical moment in which Cádiz was founded, regarded by many as the oldest city still standing in Western Europe; another city among the oldest is the andalusian Málaga. During the second millennium BCE, the kingdom of Tartessos developed in Andalusia.