Today in History – March 30th
1796 – Carl Friedrich Gauss, German mathematician, discovers the construction of the heptadecagon 1842 – Ether used as an anesthetic for the first time by Dr. Crawford Long of Georgia 1858 – Pencil with attached eraser patent granted to Hyman L. Lipman of Philadelphia 1867 – The United States buys Alaska from Russia for $7,200,000,...
![1909 - Men at Work on the Queensboro Bridge](https://i0.wp.com/www.ebroadsheet.com/wp-content/uploads/2015/03/Ironworkers.jpg?fit=300%2C199&ssl=1)