Ancient and World History

Mosaic comes from Latin 'musaeum' (museum, place of the Muses), referring to the artistic nature of mosaic work dedicated to the Muses. Though mosaics exist in Greek tradition, the word itself is Latin-derived. Greek 'muse' is related but not the direct origin, while English 'most' and German 'much' are completely unrelated etymologically.

Aristotle was the famous Greek philosopher who was appointed as the tutor for young Alexander the Great. He taught Alexander for several years, instilling in him a love for philosophy, literature, and science. Darius and Cyrus were Persian kings, while Socrates was Plato's teacher, not Alexander's.

The Indus Valley Civilization at Harappa and Mohenjodaro created the world's first known urban sanitation system around 2500 BCE, featuring covered drains and indoor plumbing in many houses. Later civilizations like the Vedic, Mauryan, and Gupta periods did not develop comparable urban sanitation infrastructure.

Alexander defeated Porus in 326 BCE at the Battle of the Hydaspes River (modern-day Jhelum River in Pakistan). Despite Alexander's victory, he was so impressed by Porus's bravery that he allowed him to continue ruling his kingdom.

In Vedic texts, vrihi, tandula, and sali all refer to different varieties of rice. These terms appear in various Sanskrit texts describing agricultural produce. Wheat is typically called godhuma, barley is yava, and gram is called mudga or chanaka in Vedic literature.

Harappan Civilization was the largest civilization known with an area of 1,260,000 km².

Increase in population of animals was not a cause of the decline of the Harappan civilization.

Roman civilization was not the contemporary civilization of the Indus valley civilization.

Alexander of Macedonia destroyed the Iranian empire.

Megasthenes was a Greek ambassador sent by Seleucus I Nicator to the court of Chandragupta Maurya around 305 BCE. He wrote the famous account 'Indica' describing Indian society and governance. Porus was an Indian king, Ptolemy ruled Egypt, and Alexander died before Megasthenes was sent.

Lothal, located in Gujarat, was a prominent city of the Indus Valley Civilization (Harappan culture). Its dockyard, dating to around 2400 BCE, is among the world's oldest known, demonstrating the civilization's advanced maritime trade capabilities.

Ancient Egyptians are documented as being among the first to record water treatment methods, dating back to around 1500 BC. They used methods like boiling, filtering through sand and charcoal, and exposing water to sunlight to purify it.

Around 1800 BCE, signs of a gradual decline began to emerge, and by around 1700 BCE, most of the cities were abandoned. In 1953, Sir Mortimer Wheeler proposed that the decline of the Indus Civilization was caused by the invasion of Aryans. Today, many scholars believe that the collapse of the Indus Civilization was caused by drought and a decline in trade with Egypt and Mesopotamia. It has also been suggested that immigration by new peoples, deforestation, floods, or changes in the course of the river may have contributed to the collapse of the IVC. A possible natural reason for the IVC's decline would have been connected with climate change that is also signalled for the neighbouring areas of the Middle East. A tectonic event may have diverted the system's sources toward the Ganges Plain, though there is complete uncertainty about the date of this event, as most settlements inside Ghaggar-Hakra river beds have not yet been dated. The actual reason for decline might be any combination of these factors.

Child marriage was unknown to the Chera people and widow marriage was permitted during their times. The worship of departed heroes was a common practice in the Chera kingdom along with tree worship and other kinds of ancestor worships.

Megasthenes was a Greek ambassador to the court of Chandragupta Maurya.