The Economic Times

In 1616, an English physician proposed a revolutionary theory and explained blood circulatory system instrumental in the success of the several surgeries and procedures and triggering the advancement of the medical field: How William Harvey's efforts saved several lives?

In 1616, English physician William Harvey proposed a theory that blood moves through the body in a continuous circuit through arteries and veins. His observations, dissections and experiments challenged the teachings of Galen. Published in 1628, his work changed medical understanding and helped establish observation and experiment as key parts of scientific inquiry.