This Month in History:

1698 Thomas Savery patents the first steam engine

1850 Benjamin Lane patents gas mask with a breathing apparatus

1854 Walter Hunt is awarded the first U.S. patent for a paper shirt collar

1892 1st concrete-paved street built (Bellefountaine, Ohio)

1866 Indelible pencil patented by Edson P. Clark, Northampton, Massachusetts

1869 Margarine is patented by Hippolye Méga-Mouriès1850 Harvard Observatory takes 1st photograph of a star (Vega)