History of Sweden between 12000 BC - 4001 BC
The Pleistocene glaciations scoured the landscape clean and covered much of it in deep quaternary sediments. Therefore no undisputed Early or Middle Palaeolithic sites or finds are known from Sweden. As far as it is currently known, the country's prehistory begins in the Allerød interstadial c. 12,000 BC with Late Palaeolithic hunting camps of the Bromme culture at the edge of the ice in what is now the country's southernmost province. Shortly before the close of the Younger Dryas (c. 9,600 BC), the west coast of Sweden (Bohuslän) was visited by hunter-gatherers from northern Germany. This cultural group is commonly referred to as the Ahrensburgian and were engaged in fishing and sealing along the coast of western Sweden during seasonal rounds from the Continent. Currently, we refer to this group as the Hensbacka culture and, in Norway, as the Fosna culture group. During the late Preboreal period, colonization continued as people move towards the north-east as the ice receded. Archaeological, linguistic and genetic evidence suggests that they arrived first from the south-west and, in time, also from the north-east and met half-way.
An important consequence of de-glaciation was a continual land uplift as the Earth's crust rebounded from the pressure exerted by the ice. This process, which was originally very rapid, continues to this day. It has had the consequence that originally shore-bound sites along much of Sweden's coast are sorted chronologically by elevation. Around the country's capital, for instance, the earliest seal-hunter sites are now on inland mountain tops, and they grow progressively later as one moves downhill toward the sea.
The Late Palaeolithic gave way to the first phase of the Mesolithic in c. 9600 BC. This age, divided into the Maglemosian, Kongemosian and Ertebølle Periods, was characterised by small bands of hunter-gatherer-fishers with a microlithic flint technology. Where flint was not readily available, quartz and slate were used. In the later Ertebølle, semi-permanent fishing settlements with pottery and large inhumation cemeteries appeared.
References: Wikipedia| Next historical period: Neolithic Age (-4000--1701)
The Odeon of Herodes Atticus is a stone theatre structure located on the southwest slope of the Acropolis of Athens. It was built in 161 AD by the Athenian magnate Herodes Atticus in memory of his wife, Aspasia Annia Regilla. It was originally a steep-sloped theater with a three-story stone front wall and a wooden roof made of expensive cedar of Lebanon timber. It was used as a venue for music concerts with a capacity of 5,000. It lasted intact until it was destroyed and left in ruins by the Heruli in 267 AD.
The audience stands and the orchestra (stage) were restored using Pentelic marble in the 1950s. Since then it has been the main venue of the Athens Festival, which runs from May through October each year, featuring a variety of acclaimed Greek as well as International performances.