c. 3150 BC — According to the legend, Narmer (First Dynasty) started to rule in Ancient Egypt.

c. 3125 BC — Narmer died.

29 June 3123 BC — An asteroid approach on collision course is documented by a Sumerian astronomer (collision happened near modern Koefels, Austria)

Varna Necropolis: what have been claimed to be the earliest-known worked gold artifacts are manufactured.

Malta: Construction of the Ħaġar Qim megalithic temples, featuring both solar and lunar alignments. "Tarxien period" of megalithic temple construction reaches its apex.

Ancient Egypt: Earliest known Egyptian hieroglyphs, beginning of the Early Dynastic Period.

Crete: Rise of Minoan civilization.

Neolithic settlement built at Skara Brae in the Orkney Islands, Scotland.

New Stone Age people in Ireland build the 250,000 ton Newgrange solar oriented passage tomb.

3114 BC Mayan fourth age begins based on their calendar

c. 3100 BC — Narmer (Menes) unifies Upper and Lower Egypt into one country; he rules this new country from Memphis.

c. 3100 BC — Narmer, pharaoh, rules (other dates are 3150 BC–3125 BC).

c. 3100 BC — Predynastic period (Neolithic) ends in Ancient Egypt (other date is 3150 BC).

c. 3100 BC — Early Dynastic (Archaic) period starts in Ancient Egypt (other date is 3150 BC).

c. 3100 BC — First stage in the construction of Stonehenge.[citation needed])

c. 3100 BC – 2600 BC — Skara Brae, Orkney Islands, Scotland is inhabited. Discovered 1850.[citation needed])

c. 3100 BC — Anu Ziggurat and White Temple in Uruk, Mesopotamia (modern Warka, Iraq) are built.

c. 3100 BC — Humans develop a writing system, cuneiform script.

3000–2600 BC — Early Harappan period continues in the Indus Valley

c. 3000 BC — Neolithic period ends

3000 BC — Djer, second pharaoh of united Egypt, starts to reign

c. 3000 BC — Narmer Palette from Hierakonpolis, First Dynasty, is made. It is now at Egyptian Museum, Cairo, Egypt.

3000 BC — Caral, the first city in the Americas, starts to be built.

c. 3000 BC — Troy is founded

c. 3000 BC — Stonehenge begins to be built. In its first version, it consists of a circular ditch and bank, with 56 wooden posts. (National Geographic, June 2008).

3000 BC–2350 BC — Scarlet Ware vase, from Tutub (modern Tell Khafajeh, Iraq) is made, it is now in Iraq Museum, Baghdad

3000 BC–2000 BC — World population about 30 million.

c. 3000 BC — Cycladic civilization starts

c. 3000 BC — Minoan civilization starts

c. 3000 BC — Helladic period starts

c. 2955 BC — Djer, second pharaoh of Egypt, dies

c. 2950 BC — first definitive use of a Nebty name by Egyptian First Dynasty pharaoh, Semerkhet

2925–2776 BC — First Dynasty wars in Egypt

c. 2920 BC — Djet, third pharaoh of Egypt

2900 BC — Beginning of the Early Dynastic Period I in Mesopotamia