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460
Democritus lived
BCE, He was able to find out what atms look like through his senses such as tasting, or feeling. He was very advanced for a greek because greeks didn't have technology like we had today such as microscopes or electric items used to work with atoms. This man was the first person to discover atoms and he named an atom an atom because it means indivisible. -
John Dalton was born.
He figured out that all matter is made of atoms and that atoms are indivisible and indestructable. He also said that all atoms had the same mass and in the way that they were made. He was color blind since he was a baby so he did a lot of studying and experiments with color blindness. This man also figured out that a chemical reaction is when the atoms are rearanged in somethng. He died July 27, 1844. -
Muhammad Ali
He founded Modern egypt. -
French Revolution of 1789
They were having voting problems and declared war. -
Beethoven's first Preformance
Beethoven was one of the greatest orchestra conductors in the world. -
White House
John Adams was the first president to ever live in the whitehouse -
Washington DC
This is the date Washington DC became the capital of our country. -
Slavery Abolition Act
The House of Commons passed a bill that made it against the law to have a British person capture and transport slaves. -
Louis Braille
He invented braille. -
Joseph John Thomson was born.
He is the person who discovered electrons. That is an important factor of atoms because electrons take up most of the atom's volume through a cloud of rings. His Model was a ball and electro static positioned electrons. This is his Cookie model. He Died August 30, 1940 -
Ernest Ruterford was born.
He Discovered that the nucleus of certain elements such as nitrogen can be disinigrated by impact from energetic active particles. He worked with radioactivity and recived a nobel prize for some of his work. He also earned many Medals. He died in 1937. -
Niels Bohr was born.
He thought of tthe process of splitting atoms and he was sucsessful even though he never tried. This is important today because this shows that you can split atoms and make important millitary bombs or mabye even new atoms. He had to flee the town that he was in because he was jewish and about to be arrested. He died in 1962 by stroke. -
James Chadwick was born.
He discovered Neutrons and was the first person on this planet to transform an atom. He spammed an atom with many other of the the same atom and the atoms combined and he created the first ever artifficial atom. He won a nobel prize in physics, a Copley Medal, and a Franklin Medal. -
World War 1
WWI -
World War II started
WWII -
Pericles was a great value in art, litterature, and Philosophy
BCE, He died 429 Bce and was a great leader to the romans.
