Culture or time period
- Amahuaca15
- Amarakaeri17
- Amazonian cultures6
- Amazonian sequence234
- Ambo207
- American cultures64,407
- Amhara36
- Amlash19
- Ammassilik Eskimo2
- Amusgo Indians4
- Ananatuba phase (ca. 1400 BC)41
- Ancestral Puebloans22
- Ancient Celtic peoples3
- Ancient Egyptian15,427
- Ancient Greece5,669
- Ancient Greek Cyprus53
- Ancient Greek chronology1,392
- Ancient Macedonia (808-168 BC)49
- Ancient Near East1,498
- Ancón sequence881