Gilbert, Adrian

Discusses the difference between codes and ciphers, examines common codes and ciphers that have been used during wars, and explains how to create simple ciphers.

Traces the development of weapons throughout history, using pictures and text to compare how the design of arms and protective equipment has been adapted to meet the needs of particular times.

History of the 18th century revolution responsible for the collapse of the French monarchy.

Describes the armies and other fighting forces of ancient Greece, including discussions of strategies, weapons and training.

Traces the events, trends, and important people of the 1980s, including science, technology, fashion, music, art, architecture, sports, entertainment, and news.