1896 - Wilhelm Roentgen's discovery of x-rays
Henry Ford introduced minimum wage of $5 per day.
1919 - National Socialist Party (Nazi) formed as German Farmers Party
1925 – Nellie Tayloe Ross of Wyoming becomes the first female governor in the United States.
1930 - Mao Tse-tung wrote "A Single Spark Can Start a Prairie Fire"
1940 – FM radio is demonstrated to the Federal Communications Commission.
2005 – Eris, the largest known dwarf planet in the Solar System, is discovered by the team of Michael E. Brown, Chad Trujillo, and David L. Rabinowitz using images originally taken on October 21, 2003, at the Palomar Observatory.
1855 King C.Gillette - inventor - safety razor
5 January Knowledge History - Science, Engineering and Management