Rachel Pfeiffer
LATEST
The Miraculous Story of How the World’s First Successful Open-Heart Surgery Was Performed
Dr. Daniel Hale Williams’s open-heart surgery saved a life and revolutionized modern surgical practices.
Meet George Ferris, The Engineer Who Designed the Ferris Wheel
Visitors to 1893 World’s Columbian Exposition were awed by the size of George Ferris’s Wheel.
How Ben Franklin Came up With the Idea of Public Libraries in the 1700s
The library proposed by Benjamin Franklin and those that followed were instrumental in improving the intellectual lives of many Americans.
