Traces man's toolmaking history from the earliest known implements of the Stone Age to their modern descendants. Basically, all of the tools man uses can be divided into twelve groups--among them, cutting tools, pounding tools, piercing tools. This book [also] explains six simple machines--the lever, the inclined plane, the pulley, the wheel and axle, the wedge, and the screw--Publisher's note.
The development of Egyptian civilization is traced through the periods of Egypt's history from about 4000 B.C. to the downfall of old Egypt in 1085 B.C.
Describes events and battles during the early years of the Revolutionary War, including campaigns at Lexington and Concord, Bunker Hill, Trenton, and activities at the Continental Congress.
Recounts the life of America's first president, including his youth in Virginia, military career, role in the formation of an independent nation, and leadership of that new country.
