Learn about the first hand tools and how they have developed throughout the years.
Hand saw - Wikipedia
Screwdriver, Manual, Handheld, Phillips
Hand Tools Throughout History
The Human Toolmaker · Frontiers for Young Minds
Hand tool - Stone, Crafting, Carving
Printing press, Invention, Definition, History, Gutenberg, & Facts
Prehistoric humans invented stone tools multiple times, study finds, The Independent
Hand Tool Preservation Association of Australia Inc. - Woodworking Tools 1600-1900
Google Drive Blog: More tools for viewing document revisions
History of American Agriculture: Farm Machinery and Technology
Kaizen: Meaning, Process, Method, & Principles
History of printing - Wikipedia
Antique and Vintage Hand Tools - The Time Before Power Tools