28th century BC

Millennium:	3rd millennium BC
Centuries:	29th century BC · 28th century BC · 27th century BC
Decades:	2790s BC 2780s BC 2770s BC 2760s BC 2750s BC 2740s BC 2730s BC 2720s BC 2710s BC 2700s BC
Categories:	Births – Deaths Establishments – Disestablishments

The 28th century BC is a century which lasted from the year 2800 BC to 2701 BC.

Events

c. 2800 BC – 2700 BC: Seated Harp Player, from Keros, Cyclades, is made. It is now at the Metropolitan Museum of Art, New York.
2775 BC – 2650 BC: Second Dynasty wars in Ancient Egypt.
Around 2773 - the 365-day calendar is introduced in Egypt.
2750 BC: End of the Early Dynastic I Period, and the beginning of the Early Dynastic II Period in Mesopotamia.
c. 2750 BC: Estimated ending of the Cucuteni-Trypillian culture in the region of modern-day Romania, Moldova, and southwestern Ukraine
c. 2715 BC: Old Kingdom starts in Ancient Egypt (another date is 2660 BC).

circa 2750 BC—Silbury Hill begun
The Neolithic monument Stonehenge is built in England near Salisbury, Wiltshire, comprising a circular earthwork 97.5 m/320 ft in diameter with 56 small pits around the circumference (later known as the Aubrey holes). The position of the ‘heel stone’ outside the circle suggests a connection with Sun worship and observation. It is probably an astronomical observatory with religious functions; the motions of the Sun and Moon are followed with the aid of carefully aligned rocks. source:[1]
According to Herodotus, somewhere around 2750 BC, the city of Tyre was founded.

28th century BC
30th century BC←29th century BC← ↔ →27th century BC→26th century BC