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Human History Timeline Overview

Sep 7, 2025

Overview

This lecture provides a concise overview of human history, outlining major time periods, key turning points, and global developments using a timeline approach.

The Timeline of World History

  • The vertical axis of the chart shows time (each white line = 100 years, spaced equally).
  • The horizontal axis organizes world regions: Americas, Africa, Europe, Asia, and the Pacific Islands.
  • Each culture, civilization, or empire is represented by a line whose width reflects its relative importance.

Time Period Labels and Dating Systems

  • "AD" (Anno Domini) and "BC" (Before Christ) are traditional Western dating conventions.
  • "CE" (Common Era) and "BCE" (Before Common Era) are modern, neutral terms.
  • There is no year zero; 1 BC is immediately followed by 1 AD.
  • The timeline begins at 3300 BCE with the invention of writing, marking the start of history.

Prehistory and Early Ages

  • Prehistory is all time before written records; for Homo sapiens, about 200,000 years back.
  • The Stone Age refers to the prehistory of humans.
  • The timeline covers only historical periods, starting with written records.

The Six Major Historical Periods

1. Early Bronze Age (c. 3300 BCE)

  • Characterized by the use of bronze and emergence of writing in Egypt, Sumer (Iraq), and the Indus Valley (Pakistan).
  • Notable inventions: wheel, plow, sail, pyramid building, astronomy, mathematics.
  • Norte Chico (Peru) and Stonehenge (England) represent large early structures without writing.

2. Bronze Age Proper

  • Begins after the 4.2-kiloyear event (c. 2200 BCE), a century of drought leading to the collapse of early civilizations.
  • Rise of new powers: Middle/New Kingdoms of Egypt, Babylonians, Indo-Aryans in South Asia, Minoans in Crete, Poverty Point culture in North America.
  • Volcanic eruptions affected civilizations and possibly inspired Atlantis myths.

3. Iron Age & The Bronze Age Collapse

  • Around 1200 BCE, the Bronze Age collapse saw rapid fall of major civilizations.
  • Start of the Iron Age and Greek Dark Ages; period marked by oral legends and scant written records.

4. Classical Antiquity (c. 600 BCE - 500 CE)

  • Records become richer, with the emergence of historical writings (e.g., Herodotus).
  • Foundations of Western Civilization: Greek and Roman empires, rise of democracy, science, and philosophy.
  • Major empires also flourished in India, China, Persia, Africa, and the Americas.
  • The Silk Road connected East and West; key religious and philosophical texts appeared.

5. Middle Ages (500 CE - c. 1500 CE)

  • Intervening period between ancient and modern history, sometimes incorrectly called the "Dark Ages" (this mainly applied to Western Europe).
  • Large-scale migrations and plagues (e.g., Justinian Plague) affected populations.
  • New powers rose: Barbarian kingdoms, Islamic caliphates, Mongol Empire, Mali Empire, Aztecs, Incas.
  • Urban centers and trade networks grew in Africa and the Americas.

6. Modern Age (c. 1500 CE – present)

  • Marked by the Black Death, Renaissance, European colonization, and scientific advances.
  • Industrial and technological revolutions transformed societies worldwide.
  • Modern era shaped by ongoing change, with parallels to prior historical turning points.

Key Terms & Definitions

  • Prehistory — The period before written records existed.
  • Bronze Age — Time when humans made tools/weapons from bronze and began writing.
  • Iron Age — Period of widespread iron use following the Bronze Age.
  • Classical Antiquity — Era of ancient Greece and Rome, and parallel civilizations globally.
  • Middle Ages/Medieval Period — The era between ancient and modern history, c. 500–1500 CE.
  • Silk Road — Major trade route linking East and West across Eurasia.
  • Renaissance — Cultural rebirth in Europe after the Middle Ages, sparked by renewed interest in classical knowledge.

Action Items / Next Steps

  • Review the six historical periods and their major characteristics.
  • Explore further readings or resources on major civilizations mentioned.
  • Consider the recurring factors (climate change, migrations, pandemics) that lead to major historical shifts.