Echo-1 Communications Satellite
A reflective balloon called Echo-1 was launched into space August 12, 1960. It was the first man-made satellite to reflect a signal from Earth and back. President Eisenhower participated in the first test of the communications system, sending a message that was picked up loud and clear.
Stock Market Crash of 1929
Stock prices spiraled out of control and the stock market crashed on October 29, 1929. Black ... more
First Open-Heart Surgery
Dr. Daniel Hale Williams was one of the few African-American surgeons of the early 1890s. He ... more
