c. 3100 BC – 2600 BC: Skara Brae, Orkney Islands, Scotland is inhabited. c. 3090 BC: Narmer (Menes) unifies Upper and Lower Egypt into one country; he rules this new country from Memphis. c. 3051 BC: The oldest currently living organism, a Great Basin bristlecone pine, undergoes germination in the White Mountains of California.
The 21st century BC was a century that lasted from the year 2100 BC to 2001 BC. Events [ edit ] Ur-Nammu (seated) bestows governorship on Ḫašḫamer, patesi (high priest) of Iškun- Sin (cylinder seal impression, ca. 2100 BC).