The Balkan Mesolithic begins around 15,000 years ago.
In Western Europe, the Early Mesolithic, or Azilian, begins about 14,000 years ago, in the Franco-Cantabrian region of northern Spain and southern France.
In other parts of Europe, the Mesolithic begins by 11,500 years ago (the beginning Holocene), and it ends with the introduction of farming, depending on the region between c. 8,500 and 5,500 years ago.
Regions that experienced greater environmental effects as the last glacial period ended have a much more apparent Mesolithic era, lasting millennia.
In northern Europe, for example, societies were able to live well on rich food supplies from the marshlands created by the warmer climate.
Such conditions produced distinctive human behaviors that are preserved in the material record, such as the Maglemosian and Azilian cultures.
Such conditions also delayed the coming of the Neolithic until some 5,500 BP in northern Europe.

The type of stone toolkit remains one of the most diagnostic features: the Mesolithic used a microlithic technology – composite devices manufactured with Mode V chipped stone tools (microliths), while the Paleolithic had utilized Modes I–IV.
In some areas, however, such as Ireland, parts of Portugal, the Isle of Man and the Tyrrhenian Islands, a macrolithic technology was used in the Mesolithic.
In the Neolithic, the microlithic technology was replaced by a macrolithic technology, with an increased use of polished stone tools such as stone axes.

There is some evidence for the beginning of construction at sites with a ritual or astronomical significance, including Stonehenge, with a short row of large post holes aligned east–west, and a possible "lunar calendar" at Warren Field in Scotland, with pits of post holes of varying sizes, thought to reflect the lunar phases.
 Both are dated to before c. 9,000 BP (the 8th millennium BC).

As the "Neolithic package" (including farming, herding, polished stone axes, timber longhouses and pottery) spread into Europe, the Mesolithic way of life was marginalized and eventually disappeared.
Mesolithic adaptations such as sedentism, population size and use of plant foods are cited as evidence of the transition to agriculture.
In one sample from the Blätterhöhle in Hagen, it seems that the descendants of Mesolithic people maintained a foraging lifestyle for more than 2000 years after the arrival of farming societies in the area; such societies may be called "Subneolithic".
 In north-Eastern Europe, the hunting and fishing lifestyle continued into the Medieval period in regions less suited to agriculture, and in Scandinavia no Mesolithic period may be accepted, with the locally preferred "Older Stone Age" moving into the "Younger Stone Age".
The Balkan Mesolithic begins around 15,000 years ago. In Western Europe, the Early Mesolithic, or Azilian, begins about 14,000 years ago, in the Franco-Cantabrian region of northern Spain and southern France. In other parts of Europe, the Mesolithic begins by 11,500 years ago (the beginning Holocene), and it ends with the introduction of farming, depending on the region between c. 8,500 and 5,500 years ago. Regions that experienced greater environmental effects as the last glacial period ended have a much more apparent Mesolithic era, lasting millennia. In northern Europe, for example, societies were able to live well on rich food supplies from the marshlands created by the warmer climate. Such conditions produced distinctive human behaviors that are preserved in the material record, such as the Maglemosian and Azilian cultures. Such conditions also delayed the coming of the Neolithic until some 5,500 BP in northern Europe.
The type of stone toolkit remains one of the most diagnostic features: the Mesolithic used a microlithic technology – composite devices manufactured with Mode V chipped stone tools (microliths), while the Paleolithic had utilized Modes I–IV. In some areas, however, such as Ireland, parts of Portugal, the Isle of Man and the Tyrrhenian Islands, a macrolithic technology was used in the Mesolithic. In the Neolithic, the microlithic technology was replaced by a macrolithic technology, with an increased use of polished stone tools such as stone axes.
There is some evidence for the beginning of construction at sites with a ritual or astronomical significance, including Stonehenge, with a short row of large post holes aligned east–west, and a possible "lunar calendar" at Warren Field in Scotland, with pits of post holes of varying sizes, thought to reflect the lunar phases.  Both are dated to before c. 9,000 BP (the 8th millennium BC).
As the "Neolithic package" (including farming, herding, polished stone axes, timber longhouses and pottery) spread into Europe, the Mesolithic way of life was marginalized and eventually disappeared. Mesolithic adaptations such as sedentism, population size and use of plant foods are cited as evidence of the transition to agriculture. In one sample from the Blätterhöhle in Hagen, it seems that the descendants of Mesolithic people maintained a foraging lifestyle for more than 2000 years after the arrival of farming societies in the area; such societies may be called "Subneolithic".  In north-Eastern Europe, the hunting and fishing lifestyle continued into the Medieval period in regions less suited to agriculture, and in Scandinavia no Mesolithic period may be accepted, with the locally preferred "Older Stone Age" moving into the "Younger Stone Age".
Mesolithic