The Beaker people of central Europe migrated to Britain, bringing their pottery, art and metalworking skills. They had discovered how to refine copper, thus heralding the Copper Age. There is evidence of Beaker pottery in Drumchapel.
The RCAHMS writes: "Archaeological trenching in September 1997 close to the site of Knappers, a neolithic and early Bronze Age cemetery excavated in the 1930s, revealed traces of prehistoric activity possibly related to the cemetery. A single sherd of beaker pottery was recovered from a small pit. Other pits were present, one of which was densely packed with charcoal. A few isolated post and stake-holes and a curving, shallow trench, possibly the slot trench of a structure, were present. Palaeobotanical samples were taken from the area of Cleddans Burn for pollen analysis."
The Beakers arrived in the east. They gradually became absorbed into the native peoples, moving west in search of gold and copper. Conversely the New Penguin History of Scotland implies that there was no such influx of people: "The manifest continuity in virtually all aspects of society other than burial practice renders it much more likely that what spread was not 'a people' but a set of ideas. It has been plausibly suggested that the collection of drinking equipment which recurs in graves reflects the religious significance attached to the consumption of alcohol, which itself may have been first introduced at the time. Analysis suggests that at least some Scottish beakers held mead or beer for the deceased to quaff in the afterlife. This early association of drink and religon has a peculiar Scottish resonance."
The introduction of tin heralded the start of the Bronze Age.