In 1944 a groundbreaking operation repaired the congenital heart defect known as blue baby syndrome. The operation's success brought the surgeon Alfred Blalock international fame and paved the way for
This is the story of a killer that has been striking people down for thousands of years:tuberculosis. After centuries of ineffective treatments, the microorganism that causesTB was identified, and the
Describes the events of the Battle of Gettysburg in 1863 as seen through the eyes of two actual participants, nineteen-year-old Confederate lieutenant John Dooley and seventeen-year-old Union soldier
