Update

history.md

@@ -12,7 +12,7 @@ The earliest known appearance of technology related to humans may likely be the
 
 In Greek many city states, such as Athens, Delphi and Sparta formed -- Ancient Greek culture would be seen as the golden age of civilization that would lay foundations to everything we now take for granted; Greeks to some extent advanced technology (e.g. architecture) but especially cultivated [art](art.md), philosophy and [politics](politics.md) -- Athens are credited for inventing [democracy](democracy.md) (though an "early" version, they still had slaves and many classes of citizens without voting power). In 8th century BC Homer created the epic poems Iliad and Odyssey. In 6th century BC Pythagoras describes the [Pythagorean theorem](pythagorean_theorem.md). After 600 BC the Greek [philosophy](philosophy.md) starts to develop which would lead to strengthening of rational, [scientific](science.md) thinking and advancement of [logic](logic.md) and [mathematics](math.md). Some of the most famous Greek philosophers were [Socrates](socrates.md), [Plato](plato.md), [Aristotle](aristotle.md) and [Diogenes](diogenes.md). Around 400 BC **[camera obscura](camera_obscura.md)** was already described in a written text from China where **[gears](gear.md)** also seem to have been invented soon after. Around 300 BC Euklid wrote his famous *Elements*, a mathematical work that proves theorems from basic [axioms](axiom.md). Ancient Greeks could communicate over great distances using **Phryctoria**, chains of fire towers placed on mountains that forwarded messages to one another using light. 234 BC Archimedes described the famous [Archimedes screw](archimedes_screw.md) and created an **[algorithm](algorithm.md) for computing the number [pi](pi.md)**. In 2nd century BC the **Antikythera mechanism, the first known [analog](analog.md) [computer](computer.md)** is made to predict movement of heavenly bodies. Romans are known to have been great builders, they built many roads and such structures as the Pantheon (126 AD) and aqueducts with the use of their own type of **concrete** and advanced understanding of physics.
 
-44 BC Julius Caesar, most famous leader of Ancient Rome, is killed. Rome has to be mentioned as at its time it was the biggest world superpower -- though it was a greatly corrupt, imperialist empire heavily based on work of slaves, Rome advanced technology in many ways, e.g. by inventing concrete, building roads and very long lasting aqueducts. They build monuments that would last for thousands of years, e.g. the famous Colosseum.
+44 BC Julius Caesar, the most famous leader of Ancient Rome, is killed. Rome has to be mentioned as at its time it was the biggest world superpower -- though it was a greatly corrupt, imperialist empire heavily based on work of slaves, Rome advanced technology in many ways, e.g. by inventing concrete, building roads and very long lasting aqueducts. They built monuments that would last for thousands of years, for instance the famous Colosseum.
 
 Around 50 AD Heron of Alexandria, an Egyptian mathematician, created a number of highly sophisticated inventions such as a **vending machine** that accepted coins and gave out holy water, and a cart that could be "programmed" with strings to drive on its own.