- Science in Ancient Rome: Measurments, Numbers, Pliny the Elder
- Time in Ancient Rome: Calendars, Sundials, Variable Hours
- Geography and Climate of the Roman Empire
- Ancient Roman Technology
- Archimedes and His Inventions
- Pollution in Ancient Rome
- Philosophy in the Roman Era
- Roman Stoic Philosophy
- Epicureanism: The Swerve, Metaphysics, Epistemology
- Epicurus: Life, Philosophy, Maxims
- Lucretius: the Great Poet and Articulator of Epicurianism
- Stoic Philosophy
- Stoic Philosophers
- Epictetus: the Influential Roman Stoic Philosopher
- Skeptics
- Marcus Aurelius: Life, Leadership, Meditations, Commodus
