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The first four caliphs of the Islamic empire – Abu Bakr, Umar, Uthman, and Ali are referred to as Rashidun (rightly guided) Caliphs (632-661 CE) by mainstream Sunni Muslims. Their tenure started with the death of Prophet Muhammad...

Enki (also known as Ea, Enkig, Dis, Nagbu, Nissiku Nudimmud) was the Sumerian god of wisdom, freshwater, intelligence, trickery and mischief, crafts, magic, exorcism, healing, creation, virility, fertility...

Ancient Greek science is a modern term for the application of systematic inquiry into the individual, the world, and the universe, which began in Ionia in the 6th century BCE with Thales of Miletus (l. c. 585 BCE) and continued...

Although he is often only remembered for being the father of Alexander the Great, Philip II of Macedon (reigned 359 BCE - 336 BCE) was an accomplished king and military commander in his own right, setting the stage for his...

The Carolingian Dynasty (751-887) was a family of Frankish nobles who ruled Francia and its successor kingdoms in Western and Central Europe during the Early Middle Ages. The dynasty expanded from Francia as far as modern Italy...

Warfare is generally understood to be the controlled and systematic waging of armed conflict between sovereign nations or states, using military might and strategy, until one opponent is defeated...

The Jamestown Colony in Virginia was the first permanent English settlement in North America founded in 1607. It was the third attempt of the Virginia Company of London to establish a permanent trade center in the Americas...

Almourol Castle in Portugal was built on a 310-meter-long and 75-meter-wide granite islet in the middle of the Tagus River. Earlier Roman and Moorish structures were completely remodelled in 1171...

Mahayana Buddhism is the largest Buddhist sect in the world, and its beliefs and practices are what most non-adherents recognize as "Buddhism" in the modern era. It developed as a school of thought sometime after 383 BCE, possibly...

The Three Kingdoms Period of ancient Korea (57 BCE – 668 CE) is so-called because it was dominated by the three kingdoms of Baekje (Paekche), Goguryeo (Koguryo), and Silla. There was also, though, a fourth entity...