Atomic Structure Timeline

Events

Existence of atoms

400 BC

Democritus, Ancient Greek philosopher

Christopher Columbus sailed towards the Americas

1492

Boston tea Party

1773

Declaration of Indepence was written

1776

Revolutionary War ended

1783

US gained independence

Atomic theory

1803

John Dalton, English chemist

Louisiana Purchase

1803

Abraham Lincoln was assassinated

1865

Discovery of the electron

1897

J.J. Thompson, English physicist

Existence of charged subatomic particles

1897

J.J. Thompson, English physicist

Discovery of isotopes

1902

Fredrick Soddy, English radiochemist

Periodic table

1913

Dmitri Mendeleev, Russia chemist & inventor

Quantum mechanical model

1913

Niels Bohr, Danish physicist

Periodic table

1913

Dmitri Mendeleev, Russia chemist & inventor

World War I began

1914

World War I ended

1918

Discovery of the nucleus

1920

Ernest Rutherford, New Zealand physicist, "the father of nuclear science"

Discovery of the proton

1920

Ernest Rutherford, New Zealand physicist, "the father of nuclear science"

Structure of electron cloud into levels

1926

Erwin Schrodinger, Austrin physicist

Discovery of the neutron

1932

James Chadwich, English physicist

My grandpa was born

October 5, 1936

World War II began

1939

Attack on Pearl Harbor

1941

US joined WWII

World War II ended

1945

Cold War began

1947

Israel was declared a state

1948

Start of Vietam War

1954

Subnuclear particles

1964

Murray Gell-Mann, American physicist

My dad was born

June 20, 1964

MLK was assassinated

1968

End of Vietnam War

1975

Cold War ended

1991

Terrorist attack on the World Trade Center

2001

I was born

June 1, 2001

First African American president was inaugurated

2009

Osama bin Laden was killed

2011

I started high school

August 19, 2015