411 REFERENCE · Wiktionary
Middle Stone Age
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Proper noun
Middle Stone Age 1
A period of African prehistory between the Early Stone Age and the Late Stone Age, generally considered to have begun around 280,000 years ago and ended around 50–25,000 years ago.
en MSA initialism
en History of Africa