1. Early Tools (~3.3 Million Years Ago)

• Oldowan Tools: The earliest known stone tools, used by early hominins like Australopithecus or Homo habilis, were simple chipped stones for cutting and scraping.
• Significance: Marked the beginning of technology, enabling early humans to process food and access new resources.

2. Mastery of Fire (~1.5 Million – 400,000 Years Ago)

• Controlled Use of Fire: Evidence from sites like Wonderwerk Cave (~1.5 million years ago) shows early humans (e.g., Homo erectus) maintaining fire.
• Creation of Fire: By ~400,000 years ago, humans had learned to create fire, dramatically improving survival, cooking, and social cohesion.

3. Development of Complex Tools (~300,000 Years Ago)

• Acheulean Tools: More sophisticated tools like hand axes appeared, associated with Homo erectus and later species.
• Composite Tools: Around 100,000 years ago, humans began combining materials, such as hafting stone blades onto wooden shafts to create spears.

4. Symbolic Expression (~100,000 Years Ago)

• Ornamental Beads and Pigments: Evidence from sites like Blombos Cave in South Africa shows early symbolic thinking and communication.
• Significance: A precursor to written language and cultural development.

5. Domestication of Animals (~15,000–10,000 BCE)

• Dogs (~15,000 BCE): The first domesticated animal, aiding in hunting and companionship.
• Livestock (~10,000 BCE): Goats, sheep, and cattle were domesticated, providing a stable food source and driving early agriculture.

6. Agricultural Revolution (~10,000 BCE)

• Farming: In the Fertile Crescent, humans domesticated plants like wheat and barley, shifting from hunting-gathering to settled farming.
• Significance: Enabled population growth and the formation of villages and cities.

7. Pottery (~10,000–7,000 BCE)

• First Pottery: Early pottery vessels were created to store surplus food and water, found in regions like East Asia and the Near East.
• Significance: Allowed long-term food storage, critical for agricultural societies.

8. The Wheel (~3500 BCE)

• First Use: Developed in Mesopotamia, initially for pottery wheels and later adapted for carts and transportation.
• Significance: Revolutionized transport, trade, and agriculture.

9. Metalworking (~3000 BCE)

• Copper and Bronze Tools: The Chalcolithic period saw the first widespread use of metal tools, followed by the Bronze Age.
• Significance: Stronger tools and weapons advanced farming, construction, and warfare.

10. Writing Systems (~3100 BCE)

• Cuneiform: The first writing system, developed in Mesopotamia, was used for record-keeping and administration.
• Significance: Enabled the rise of complex societies and historical documentation.

11. Domestication of the Horse (~3000–2500 BCE)

• Significance: Horses revolutionized transport, warfare, and agriculture, becoming integral to many ancient civilizations.

12. Ironworking (~1200 BCE)

• Iron Age: Iron tools and weapons became widespread, offering superior strength and durability compared to bronze.
• Significance: Facilitated the expansion of civilizations and military advancements.

13. Aqueducts and Water Management (~700 BCE)

• First Aqueducts: Built by the Assyrians and later perfected by the Romans, aqueducts brought fresh water to cities.
• Significance: Supported urban growth and public health.

Certainly — here’s a revised version that includes both movable type and the printing press, highlighting their complementary roles and global significance:

14. Printing (Movable Type ~1040 CE, Printing Press ~1440 CE)

• Movable Type: Invented in China by Bi Sheng, it introduced the concept of reusable individual characters, allowing flexible and repeatable text printing.
• Printing Press: Perfected in Europe by Johannes Gutenberg, it mechanized the printing process using movable metal type, enabling the mass production of books.
• Significance: Together, these innovations revolutionized the spread of knowledge, dramatically increased literacy, and laid the foundation for the Renaissance, Reformation, and the Scientific Revolution.

15. Steam Power (~1712 CE)

• First Steam Engine: Invented by Thomas Newcomen and later improved by James Watt, steam power fueled the Industrial Revolution.
• Significance: Transformed manufacturing, transportation, and energy.

16. Electricity (~1800 CE)

• Battery: Alessandro Volta’s invention of the electric battery marked the beginning of the electrical age.
• Significance: Enabled modern communication, lighting, and industrial processes.

17. Computers and the Digital Age (~1940 CE)

• First Computers: Machines like the ENIAC revolutionized information processing.
• Significance: Paved the way for the modern era of computation, AI, and the internet.

This timeline captures humanity's journey from simple tools to transformative technologies, highlighting how each innovation built upon previous advancements, enabling the complexity of modern civilization.