History
Genetic estimates of the age of the common ancestor of non-African humans may be wrong. bruncosta Peter Hiscock, University of Sydney How and when did humans colonise the globe? This question has become one of the key concerns of archaeologists, geneticists and human...
History
The advantages of coins as currency were clear. cgb , CC BY-SA Chapurukha Kusimba, American University Sometimes you run across a grimy, tattered dollar bill that seems like it’s been around since the beginning of time. Assuredly it hasn’t, but the history of human...