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Ares was the Greek god of war. He was perhaps the most unpopular of all the Olympian gods because of his quick temper, aggressiveness, and unquenchable thirst for conflict. Ares famously seduced Aphrodite, unsuccessfully fought with Hercules...

Artemis was the Greek goddess of hunting, wild nature, and chastity. Daughter of Zeus and sister of Apollo, Artemis was a patron of girls and young women, and a protectress during childbirth. Artemis was widely worshipped but her most famous...

Archimedes (l. 287-212 BCE) was a Greek engineer and inventor who is regarded as the greatest mathematician of antiquity and one the greatest of all time. He is credited with a number of inventions still in use today (such as the Archimedes...

Aristotle of Stagira (l. 384-322 BCE) was a Greek philosopher who pioneered systematic, scientific examination in literally every area of human knowledge and was known, in his time, as "the man who knew everything" and later simply as "The...

The Arthashastra is an Indian treatise on politics, economics, military strategy, the function of the state, and social organization attributed to the philosopher and Prime Minister Kautilya (also known as Chanakya, Vishnugupta, l. c. 350-275...

The Ark of the Covenant refers to the box-like container that held the tablets of the Law received by Moses on Mount Sinai. Tradition claimed that it contained two stone tablets, carved by God, listing the first ten commandments given to...

Aryan is a designation originally meaning “civilized”, “noble”, or “free” without reference to any ethnicity. It was first applied as a self-identifying term by a migratory group of people from Central Asia later known as Indo-Iranians (who...

Aristarchus of Samos (l. c. 310 - c. 230 BCE) was a Greek astronomer who first proposed a heliocentric model of the universe in which the sun, not the earth, was at the center. Although his theory was noted by other thinkers of his time...

Arjuna (also given as Arjun) is the great hero of the Indian epic Mahabharata and the philosophical-religious dialogue Bhagavad Gita. His name means “shining”, “silver” and similar terms relating to brightness. He is the most popular champion...

Archaeology is a wide subject and definitions can vary, but broadly, it is the study of the culture and history of past peoples and their societies by uncovering and studying their material remains, i.e. tools, ruins, and pottery. Archaeology...