28th Century BC - Inventions, Discoveries, Introductions

Inventions, Discoveries, Introductions

• 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:
• According to Herodotus, somewhere around 2750 BC, the city of Tyre was founded.