General
Population: Perhaps 100 million*
- Births: Mahavira Vardhamana born (founder of Jainism) (540 BC)
- Cartography: Anaximander of Miletus draws first map of known world - see 546 (540 BC)
- Philosophy: Thales of Greece dies - founder of "theory of everything" (547 BC)
- Religion: Cult of Dionysius attempts to thward hereditary priesthood in Athenian nobility (546 BC)
- Science: Anaximander of Miletus teaches that all life develops from amphibians (546 BC)
- Deaths: Thales of Greece (547 BC),
King Croesus of Lydia (546 BC),
Anaximander of Miletus - theory of aperion and founder of evolution and first abstractions (546 - 545 BC),
Thales of Miletus the Greek philosopher (545 BC)
Americas
- General: Plates pass from Nephi to Jacob (544 BC)
Asia
- India: Magadha becomes dominant kingdom in Indian subcontinent (540 BC)
Europe
- Greece: Sparta becomes part of peloponnesian League to 146 BC (546 BC)
Athens controlled by military usurper Pisistratus and son (546 BC)
Persians conquer Ionia (546 BC)
Middle East
- General: End of Anatolia, Lycia, and Lydia (547 - 546 BC)
King Croesus - last king of Lydia defeated and killed by Persians in Battle of Sardis (546 BC)
- Iran: End of kingdom of Media (Medes) (549 BC)
- Persian Empire: Rise of empire under Cyrus II (The Great) (540 BC)