SUMER
Starting in 4000 BC, w/Hunting and Fishing.
By 3200 BC acquired; Agriculture, Animal Husbandry, Writing, Polytheism, Pottery, The Wheel, Mysticism, Masonry, Monarchy, Alphabet, Archery, Bronze Working, Mathematics, Priesthood, Mining, and Sailing.
Pretty impressive. (In reality, they started w/Ag, AH, Hunt, Fish, Pot, Mys, Mason, and Arch.)
Civics; HR, Slavery, Paganism.
Apparently, despite all this research, barbarians of many different varieties attacked periodically; the Guti, the Kassites, the Akkadians, the Amorites, the Arameans. Somehow, the city of Babylon separated (ala LoR), and became an indepent power, inheriting all the techs and adding Code of Laws.
The Babylonians then built the Hanging Gardens but were conquered in turn, by the Persians led by Cyrus (the Great), who didn't have quite as many techs as did the Mesopotamians, but DID have Horseback Riding (and a stack of Horse Archers.)
(The story would be compete IF there was an Assyrian civ. Sadly, this major oversight is one of the ignored, yet highly significant civilizations from history.)