Learners explain historical findings such as Rutherford and Bohr's contributions, explain wave particle duality, and formulate Heinsenberg's uncertainty principle. They also draw s, p, and d orbitals, explain more historical findings,...

Ancient History Sourcebook offers the Meditations of Marcus Aurelius Antonius, the "philosopher emperor" of Rome. This is one of the few pieces of literature written by a world leader; even more striking is the fact that it is a work of...

Encyclopedia entry provides an overview of the historical development of ancient Chinese philosophy and its main schools of thought. Includes photos, links to related material and timeline of events.

"To give you a flavor of food that Romans may have eaten at the baths, we have reprinted ancient recipes." The majority of the recipes are 2,000 years old and come from Apicius, a Roman chef.

Read about the life of the Greek philosopher Socrates, the philosophy he developed, his influence, and his execution for impiety and for corrupting young people.

Read about the life of the Greek philosopher Plato, the philosophy he developed, and his legacy.

Overview of the life of Greek philosopher Aristotle, with images, a timeline, and links to related content.

An extensive biography of Cicero covering his life, his philosophical writings, and his philosophical views.

A discussion of the theories of Democritus (c. 460-370 BC). He is best known as an atomist, having developed an atomic theory. Also discusses the ideas of other philosophers who are believed to have influenced Democritus.

Fordham University gives a brief selection by Eutropius about the reign of Marcus Aurelius. Describes him as a very pious and generous man, despite all his power and the problems he faced.

This resource provides a narrative survey of the history of Western philosophical thought. Provides a general description of different philosophical questions and how they were answered.

Read about the life of the Greek philosopher Epicurus and the philosophy he developed called Epicureanism.

The interesting life of ancient Greek philosopher Hipparchia is told here in some detail. References for further study are included.

Read this entry from William Morey's 1901 text to find out about Marcus Aurelius, one of the five good emperors, who was known as a philosopher.

History of Socrates written with elementary age students in mind provides an overview of Socrates, his philosophy and methods, as well as general facts about his life. Teacher resources included.

The life and philosophical treatises of Aristotle (384-322 BCE) are surveyed, including his writings on biology, zoology and physics.

This site from the Internet Encyclopedia of Philosophy provides an overview of how people viewed God from the time of the Roman Empire until today.

History for Kids presents information on the life and works of Adelard, a 12th Century philosopher and translator from the Roman city of Bath. Includes links to teacher resources.

Contains a detailed biography and discussion of the contributions of the ancient Greek philosopher Thales. Part of a larger mathematics site, this page focuses primarily on his contributions to Geometry.

Quotes from numerous ancient philosophers on Stoicism.

Looks at the life of Zeno of Elea (c. 490 - 430 B.C.) and at his paradoxes, of which eight survived. His ideas were at odds with Aristotle, who disagreed with him. Many philosophers have grappled with his paradoxes, and even today, some...

An in-depth study of the Christian philosopher from the 6th century C.E. There is a comprehensive biographical sketch plus nice analysis of his major works and ideas.

Wikipedia provides detailed information on Epicureanism, a system of philosophy based on the teachings of Epicurus.

Introduction from the Internet Encyclopedia of Philosophy to the main topics and thinkers in the Greek philosophical tradition. Includes links to related articles. Helpful for relating particular philosophers to each other chronologically.