1914-06-25 15:42:24

PNAS Established

Proceedings of the National Academy of Sciences Established

1915-01-15 00:00:00

First Issue of PNAS Publishes

1915-05-07 13:56:05

Chromosomes and Inheritance - Thomas Hunt Morgan

1916-01-07 13:56:05

National Research Council Established

1916-12-01 00:00:00

Environment Influences Anatomy and Physiology - Franz Boas

1917-01-01 10:25:26

Russian Revolution

1918-01-01 01:07:39

Milky Way Measured

1918-01-01 10:25:26

The Great Influenza Pandemic

1920-01-01 10:25:26

First Commercial Radio Broadcast

1920-01-01 17:52:03

Protons Discovered

1920-04-01 00:00:00

The "Great Debate" on the Scale of the Universe

1924-01-01 17:52:03

Wave Mechanics

1925-06-01 00:00:00

Florence R. Sabin: First Woman Elected to NAS

1927-01-01 10:25:26

First Trans-Atlantic Flight

1928-01-01 17:52:03

Uncertainty Principle

1929-01-01 10:25:26

The Great Depression

1929-03-01 00:00:00

The Expanding Universe - Edwin Hubble

1929-06-01 00:00:00

Penicillin Discovered

1930-01-01 10:25:26

National Institute of Health

1931-01-01 03:29:49

Cyclotron Invented

1931-12-01 00:00:00

The Ergodic Theorem - George Birkhoff

1932-01-01 17:30:55

The Mean Ergodic Theorem - John von Neumann –

1933-01-01 03:29:49

Plastics Invented

1934-01-01 10:25:26

Dust Bowl Begins

1934-05-01 00:00:00

Super-novae and Cosmic Rays - Baade and Zwicky

1935-01-01 10:25:26

Social Security Act

1935-01-01 17:52:03

Neutrons Discovered

1939-01-01 10:25:26

New York World’s Fair

1941-01-01 10:25:26

Second World War

1941-11-01 00:00:00

One Gene, One Enzyme - Beadle and Tatum

1942-01-03 09:50:49

Manhattan Project

1945-08-06 16:14:38

Atomic Bombing of Japan

1946-01-01 08:12:55

Atomic Energy Act Passed

1947-01-01 03:29:49

Transistor Invented

1947-01-01 10:25:26

Partition of India and Pakistan

1948-08-06 16:14:38

Relativity and Quantum Wave Equations - Bargmann and Wigner

1950-01-01 08:12:55

Korean War

1950-03-01 21:51:34

Game Theory - John Nash

1950-06-01 10:14:59

Jumping Genes - Barbara McClintock

1951-04-01 10:14:59

The Structure of Proteins - Linus Pauling

1951-05-01 14:07:14

Quantum Fields- Julian Schwinger

1952-01-01 03:29:49

Polio Vaccine Developed

1952-05-01 14:07:14

Nuclear Transplantation - Briggs and King

1952-10-01 14:07:14

Social Equilibrium - Gerard Debreu

1953-01-01 03:29:49

Structure of DNA

1953-10-01 14:07:14

Stochastic Games - Lloyd Shapley

1953-12-01 17:52:03

The Vanishing Theorem - Kunihiko Kodaira

1954-05-14 17:30:55

Brown vs. Board of Education

1954-12-23 03:29:49

First Human Organ Transplant

1957-10-04 00:00:00

Sputnik 1 Launched