3000 B.C.
The 3rd millennium BC spanned the years 3000 through 2001 BC. This period of time corresponds to the Early to Middle Bronze Age, characterized by the early empires in the Ancient Near East. In Ancient Egypt, the Early Dynastic Period is followed by the Old Kingdom. In Mesopotamia, the Early Dynastic Period is followed by the Akkadian Empire
c. 2900–2350 BC: Early Dynastic Period (Mesopotamia)
c. 2334–2154 BC: Akkadian Empire
3100–2686 BC: Early Dynastic Period (Egypt)
2686–2181 BC Old Kingdom of Egypt
2181–2055 BC First Intermediate Period of Egypt
Europe
Further information: Neolithic Europe
c. 3200 BC: Cycladic culture in Aegean islands of Greece.
c. 3200 BC–3100 BC: Helladic culture in mainland Greece.[2]
c. 3200 BC–2800 BC: Ozieri culture.
Corded Ware culture (also Battle-axe culture, or Single Grave culture).
Late Maikop culture.
Late Vinca culture.
Early Beaker culture.
Yamnaya culture, Catacomb culture, likely loci of Indo-European Satemization.
The Sintashta-Petrovka-Arkaim culture emerges from the Catacomb culture from about 2200 BC, likely locus of Proto-Indo-Iranian.
Late Funnelbeaker culture.
South Asia
2800 BC–2600 BC: Harappan 2.
2600 BC–1900 BC: Harappan 3 (Mature Harappan).
East and Southeast Asia
c. 2500 BC: Austronesian peoples from Formosa colonize Luzon in northern Philippines.
Americas
Sub-Saharan Africa
c. 3000 BC: Nubian A-Group, Ta-Seeti "kingdom" came to an end, possibly due to raids by Egypt.
2890 BC: Second Dynasty of Egypt, reign of Hotepsekhemwy.
Syria: Foundation of the city of Mari (29th century BC).
Semitic tribes occupy Assyria in northern part of the plain of Shinar and Akkad.
Phoenicians settle on Syrian coast, with centers at Tyre and Sidon.
Beginning of the period of the mythical Sage Kings in China, also known as the Three Sovereigns and Five Emperors.
c. 2879 BC: Rise of the mythical Văn Lang Kingdom and the Hồng Bàng Dynasty in northern Viet Nam.
Harp Player from the island of Keros, made by the Cycladic culture sometime in the 28th century BC.
c. 2800 BC–2700 BC: Harp Player, from Keros, Cyclades, was made. It is now at the Metropolitan Museum of Art, New York.
Germination of the Bristlecone pine tree "Methuselah" about 2700 BC, one of the oldest known trees still living now.
c. 2498 BC: Fifth Dynasty of Egypt, reign of Userkaf.
c. 2492 BC: The Armenian patriarch Hayk defeats the Babylonian king Bel (legendary account).
2334 BC: Sargon of Akkad conquers Mesopotamia, establishing the Akkadian Empire.
c. 2181 BC: Seventh and Eighth Dynasty of Egypt (2181–2160).
c. 2160 BC: Ninth Dynasty of Egypt, reign of Akhtoy Meryibtowe.
c. 2130 BC: Tenth Dynasty of Egypt, reign of Meryhathor.
c. 2134 BC: Eleventh Dynasty of Egypt, reign of Mentuhotep I.