DISCOVERIES

Oxygen

Joseph Priestly

Hydrogen

Henry Cavendish

Selenium

Berzelius

Silicon

Berzelius

Thorium

Berzelius

Calcium

Humphry Davy

Potassium

Humphry Davy

Sodium

Humphry Davy

Boron

Humphry Davy

Barium

Humphry Davy

Nitrogen

Daniel Rutherford

Uranium

Martin Klaproth

Radium

Madam Curie

Fluorine

Henri Moissan

Iodine

Bernard Courtois

Chlorine

Carl Wilhelm Scheele

Penicillin

Alexander Fleming

Insulin

Banting and Best

E.C. G.

Willem Einthoven

E.E.G.

Hans Berger

Microscope

Leeuwenhoek

Stethoscope

Rene Laennce

Blood Circulation

William Harvey

Blood Group

Karl Landsteiner

Rh Factor

Karl Landsteiner

Blood transfusion

James Blundell

Vaccination

Edward Jenner

Smallpox vaccine

Edward Jenner

Rabies vaccine

Louis Pasteur

IPV

Jonas E. Salk

Oral Polio vaccine

Albert Sabin

B.C.G. vaccine

Albert Calmette & Guerin

Artificial synthesis of Gene

Hargobind Khorana

Malarial parasite

Alphons Laveran

T.B. Bacteria

Robert Koch

Chromosomes

Hoffneister

Sex-linked inheritance

T.H.Morgan

CT scan

Godfrey Hounsfield