Across
- 2. a worker in a skilled trade, especially one that involves making things by hand
- 3. the period of time before written records
- 4. (in ancient Mesopotamia) a rectangular stepped tower, sometimes surmounted by a temple; they were first attested in the late 3rd millennium BC
- 8. the stage of human social and cultural development and organization that is considered most advanced
- 10. prehistoric monument on Salisbury Plain in Wiltshire, England
- 12. a member of a people having no permanent abode, and who travel from place to place to find fresh pasture for their livestock
- 13. Crescent a crescent-shaped region in Western Asia; formed by the Tigris and Euphrates rivers in the Mediterranean Sea; this region gave rise to some of the world's earliest civilizations
- 15. the critical transition that resulted in the birth of agriculture
- 16. relating to or denoting the later part of the Stone Age, when ground or polished stone weapons and implements prevailed
- 20. objects made by human beings, typically items of cultural or historical interest
Down
- 1. a chart that uses pictures to represent data
- 5. the study of human history and prehistory through the excavation of sites and the analysis of artifacts and other physical remains
- 6. relating to or denoting the early phase of the Stone Age, lasting about 2.5 million years, when primitive stone implements were used
- 7. the species to which all modern humans belong
- 9. any person who depends primarily on wild foods for subsistence
- 11. the customs, arts, social institutions, and achievements of a particular nation, people, or other social group
- 14. arrange (laws or rules) into a systematic code
- 17. denoting or relating to the wedge-shaped characters used in the ancient writing systems of Mesopotamia, Persia, and Ugarit, surviving mainly impressed on clay tablets
- 18. tame (an animal) and keep it as a pet or for farm produce
- 19. people who copy out documents, especially those employed to do this before printing was invented