History of Latvia between 2000 BC - 1 BC
In about 2000 BC a new wave of colonists flowed into the Baltic area from the South. They settled down in East Prussia, Lithuania and Southern Latvia. This invasion continued in the Bronze Age (1500—500 BC) and the older Iron Age (500—0 BC). During these periods two cultural routes are playing a great part in the development of Baltic culture. One of these leads over East Prussia to Central Europe, the other across the sea to Scandinavia.
Some forms of graves, tools, arms, and burial customs lead one to suppose that the continuous development of these prehistoric cultural forms of the Baltic is sufficient to prove that the bearers of this civilization were the forefathers of the present Baltic nations. Thus, the ethnic history of these people can be traced back to about 2000 BC.
At the beginning of our era the common original Baltic culture had already branched into the Western (later Borussian or Ancient Prussian) and Eastern (later Lithuanian and Latvian) cultures. Even in that age, as is shown by archaeology and linguistics, the relations in culture and trade between the Balts and the Finno-Ugrians were considerable and close. At any rate, this development took place some time before the Teutons established direct contact with both races.
The Bronze Age (1500–500 BC) witnessed the transition from an economy based on food procurement to one based on food production. Stock-keeping and agriculture became increasingly important. In the Older Iron Age (500 BC - 0 AD), the first iron objects came into use.
Reference: Latvians.com
Easter Aquhorthies stone circle, located near Inverurie, is one of the best-preserved examples of a recumbent stone circle, and one of the few that still have their full complement of stones. It consists of a ring of nine stones, eight of which are grey granite and one red jasper. Two more grey granite stones flank a recumbent of red granite flecked with crystals and lines of quartz. The circle is particularly notable for its builders' use of polychromy in the stones, with the reddish ones situated on the SSW side and the grey ones opposite.
The placename Aquhorthies derives from a Scottish Gaelic word meaning 'field of prayer', and may indicate a 'long continuity of sanctity' between the Stone or Bronze Age circle builders and their much later Gaelic successors millennia later. The circle's surroundings were landscaped in the late 19th century, and it sits within a small fenced and walled enclosure. A stone dyke, known as a roundel, was built around the circle some time between 1847 and 1866–7.