This Day, That Year – October 4
Dutch mathematician, Christiaan Huygens, patented the pocket watch on this day in 1675. Did you know that: • William Griggs, the inventor of the photo-chromo lithography, was born on this day in 1832• The first escalator was installed at London Underground at Earl’s Court Station on this day in 1911• The patent for an antibiotic […]
