Antimatter Timeline

30 June 1905

Albert Einstein publishes his theory of Special Relativity

07 April 1912

Victor Hess discovers cosmic rays

27 January 1926

Erwin Schrödinger and Werner Heisenberg devise a quantum theory

02 January 1928

Dirac's equation predicts antiparticles

09 September 1932

Carl Anderson discovers the positron

02 February 1934

Ernest Lawrence patents the cyclotron

01 April 1954

The Bevatron starts up at Berkeley, California

01 November 1955

The Bevatron discovers the antiproton

03 October 1956

The Bevatron discovers the antineutron

27 July 1964

Cronin and Fitch detect a difference between matter and antimatter

01 September 1965

First observations of antinuclei

18 August 1978

First storage of antiprotons

04 April 1981

First proton-antiproton collisions

15 September 1995

First antiatoms produced: antihydrogen, at CERN

07 February 1997

Antiproton Decelerator approved

18 September 2002

ATHENA and ATRAP create "cold" antimatter

05 June 2011

ALPHA traps antimatter atoms for 1000 seconds