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Edmond Halley
Edmond Halley (1656-1742) was an English astronomer, mathematician, and cartographer. Halley's Comet is named after him since he accurately predicted its return in 1758. One of the early globetrotting scientists, Halley led several maritime...
Definition
Hipparchus of Nicea
Hipparchus of Nicea (l. c. 190 - c. 120 BCE) was a Greek astronomer, geographer, and mathematician regarded as the greatest astronomer of antiquity and one of the greatest of all time. He is best known for his discovery of the precession...
Definition
Battle of Pydna
The Battle of Pydna in June 168 BCE was a decisive Roman victory that ended the Third Macedonian War and established Rome as the dominant power in the Mediterranean. The Roman Republic was expanding, enlarging its sphere of influence along...
Article
The 1944 Plot to Assassinate Hitler
A group of German generals attempted to assassinate the leader of Nazi Germany Adolf Hitler (1889-1945) using a bomb on 20 July 1944 but failed. The conspirators were against Hitler's conduct of the Second World War (1939-45) and Nazism in...
Article
Greek Mathematics
Greek mathematics, the study of numbers and their properties, patterns, structure, space, apparent change, and measurement, is said to have originated with Thales of Miletus (l. c. 585 BCE) but was clearly understood during the periods of...
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Predictions Related to Lunar Eclipses Tablet from Hattusa
Lunar eclipses on different days throughout the year were interpreted and their meaning was given. For example: "...If there is a lunar eclipse on the day of the 6th month: A prince of the royal family sent away in disgrace will come back...
Definition
Romulus and Remus
In Roman mythology, Romulus and his twin brother Remus were the founders of the city of Rome. They were the children of Rhea Silvia and Mars (or in some variations the demi-god hero Hercules) and their story is recorded by many authors including...
Definition
Achaemenid Empire
East of the Zagros Mountains, a high plateau stretches off towards India. While Egypt was rising up against the Hyksos, a wave of pastoral tribes from north of the Caspian Sea was drifting down into this area and across into India. By the...
Definition
Christopher Columbus
Christopher Columbus (l. 1451-1506 CE, also known as Cristoffa Corombo in Ligurian and Cristoforo Colombo in Italian) was a Genoese explorer (identified as Italian) who became famous in his own time as the man who discovered the New World...
Definition
Archimedes
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...