Thales: Did you mean...?

Anaxagoras (l. c. 500-c. 428 BCE) was a Pre-Socratic Greek philosopher who claimed the First Cause of existence was Mind (nous) and all things were constituted of indestructible “seeds” (or “stuff”), originally a single mass, separated...

Empedocles (l. c. 484-424 BCE) was a Greek philosopher and mystic whose work harmonized the philosophies of Parmenides (l. c. 485 BCE), Heraclitus (l. c. 500 BCE), and Pythagoras (l. c. 571 to c. 497 BCE) in presenting a unified vision...

Heraclitus of Ephesus (l. c. 500 BCE) was one of the early Pre-Socratic philosophers who, like the others, sought to identify the First Cause for the creation of the world. He rejected earlier theories such as air and water...

The history of astronomy in the Ancient World can be traced back thousands of years, and well before the Ancient Greek philosophers famously worked on it. It is generally agreed that the discipline of astronomy...

Co-authored by Steven Umbrello and Tina Forsee It is very common to hear in both academic circles, as well as more close-knit Stoic circles, Marcus Aurelius (121 – 180 CE) being referred to...

Babylon is the most famous city from ancient Mesopotamia, whose ruins lie in modern-day Hillah, Iraq, 59 miles (94 km) southwest of Baghdad. The name is derived from bav-il or bav-ilim, which in Akkadian meant "Gate...

Mesopotamian science and technology developed during the Uruk period (circa 4000-3100 BCE) and the Early Dynastic period (circa 2900-2350/2334 BCE) of the Sumerian culture of...

Socrates of Athens (l. c. 470/469-399 BCE) is among the most famous figures in world history for his contributions to the development of ancient Greek philosophy which provided the foundation for all of Western Philosophy. He is, in...

Democritus (l. c. 460 - c. 370 BCE) was a Greek philosopher and younger contemporary of Socrates, born in Abdera (though other sources cite Miletus) who, with his teacher Leucippus (l. 5th century BCE), was the first to propose an...

Pythagoras (l.c. 571 to c. 497 BCE) was a Greek philosopher whose teachings emphasized the immortality and transmigration of the soul (reincarnation), virtuous, humane behavior toward all living things, and the concept of "number"...