Short answers, pulled from the story.
The Nordic Bronze Age lasted from approximately 2000-1750 BC to around 500 BC. Oscar Montelius, who coined the term, divided it into six sub-periods in his 1885 publication, with a broader subdivision into an Early Bronze Age from 1700 BC to 1100 BC and a Late Bronze Age from 1100 BC to 550 BC.
Nordic Bronze Age people exported amber along the Amber Road and imported metals including copper from Sardinia, Iberia, Cyprus, and Britain, and tin from the British Isles. Their trade partners included the Tumulus culture, Mycenaean Greece, and eventually New Kingdom Egypt, with Baltic amber found in the tomb of Tutankhamun.
The Trundholm Sun Chariot is a Nordic Bronze Age artefact produced using the lost-wax casting method. Its gold disc carries curvilinear wave-band designs also found on Mycenaean artefacts, and archaeologist Christoph Sommerfeld has argued that circular symbols on the disc encode the 19-year lunisolar Metonic cycle.
A minimum of 50,000 burial mounds were constructed in Denmark alone between 1500 and 1150 BC, and prominent examples like the Kivik King's Grave and the Lusehøj contained extraordinary quantities of gold and bronze. The Nordic Bronze Age became the richest culture in Europe by density of metal deposits, fuelled by large-scale metal imports exchanged for amber.
Oak coffin burials from the 14th-13th centuries BC achieved mummification by repeatedly watering the burial mounds to create a bog-like, oxygen-free environment inside the graves. Named examples include the Egtved Girl, the Skrydstrup Woman, and mummies from Borum Eshøj. The practice may reflect Egyptian influence, as Egyptian artefacts appear in Scandinavia at the same time Baltic amber appears in Egyptian tombs.
A 2024 study published in Nature identified a Late Neolithic and Bronze Age genetic cluster designated LNBA phase III, dominated by males with I1 Y-haplogroups, which forms the predominant genetic source for Iron Age and Viking Age Scandinavia. The study found this cluster also underlies non-Scandinavian populations with Germanic association, including Anglo-Saxons and Goths, consistent with the archaeological link between the Nordic Bronze Age and early Germanic speakers.