Earliest-known true tartan identified
Radiocarbon dating revealed that the fabric dated to AD 1500-1655, with a 95.4% probability that it came from 1500-1600, confirming it as the oldest-known piece of tartan.
microscopy
New theory emerges about how humans learned to count
The Les Pradelles hyena bone is ‘potentially the earliest known example of this type of mark-making’, and suggests Neanderthals possessed the cognitive abilities for numeracy.