Ancient+Times.

 (384 BC-322 BC) Aristotle came from a family of knowledge. His father, Nicomachus, was King Amyntas of Macedon’s personal physician. Throughout his childhood he was educated as a member of the Greek aristocracy. Once he turned 18 he moved to Athens, Greece where he furthered his education at Plato’s Academy. Aristotle stayed at the academy until Plato died, which was close to 20 years. Later on he came up with his own scientific method. It was aimed at the universe and Aristotle found that the universe is made of particular things, called the “essence of things”.
 * Aristotle**

(520 BC-450 BC) Born from a brilliant and wealthy family in Elea, Greece, it is safe to say that Parmenides was a very successful individual in his time period. He founded the Eleatic School of Philosophy where the focus was on platonic metaphysics. At the school he debated what reality is, along with motion and nothingness. Parmenides had the first legitimate argument against nothingness, saying that there is a possibility that there are not any voids. This was later contradicted by the proposal of the atomic theory which said there is no such thing as nothing.
 * Parmenides**



Democritus is most known for the work he did with the atomic theory. He expanded upon a theory he had heard from a man named Leucippus. The original theory stated that substances more or less could not be broken down forever, there must be a particle that is the absolute limit. Democritus believed that these particles that cannot be broken down, called atoms, must have a specific density and volume all relative to their mass.
 * Democritus** (460-370 AD). Democritus was born into noble family containing wealth and importance in Greek society. Where most people in this society would have limited boundaries on education, Democritus expanded his horizons. After the passing of his father, he began traveling lands all over the Mediterranean and studied all their different schools of thought. Once he travels where complete he began to apply what he had learned into some of his own theories. His keen insight allowed him to predict changes in the future, such as the weather. It was predictions like these that made people of his day believe he was immortal.