Technology
First U.S. Scratch-and-Sniff Stamps
On June 20, 2018, the USPS issued America’s first scratch-and-sniff stamps.
Birth of Lillian M. Gilbreth
Lillian Evelyn Moller Gilbreth was born on May 24, 1878, in Oakland, California. Dubbed “America’s first lady of engineering,” Gilbreth combined psychology, engineering, and scientific management to improve efficiency and productivity for a number of businesses and industries.
The International Telecommunication Union
On May 17, 1865, the International Telegraph Union (ITU), which later became the International Telecommunication Union, was founded.
Birth of Dr. Theodore von Kármán
Scientist and mathematician Dr. Theodore von Kármán was born on May 11, 1881, in Budapest, Austria-Hungary.
1939 New York World’s Fair
On April 30, 1939, the New York World’s Fair opened at Flushing Meadows-Corona Park in Queens, New York.
Happy National Doctors’ Day
March 30 is celebrated as National Doctor’s Day in the United States to commemorate Dr. Crawford W. Long’s use of ether for the first time on this date in 1842.
Birth of Joseph Priestley
Joseph Priestley was born on March 24, 1733, in Birstall, West Riding of Yorkshire, United Kingdom.
Birth of Robert Millikan
Physicist Robert Andrews Millikan was born on March 22, 1868, in Morrison, Illinois.
Birth of Charles W. Eliot
Educator Charles William Eliot was born on March 20, 1834, in Boston, Massachusetts.