EnlargeDownload Link Citation: Thomas Edison's patent drawing and application for an improvement in electric lamps, patented January 27, 1880; Records of the Patent and Trademark Office; Record Group 241; National Archives. View All Pages in the National Archives Catalog View Transcript On January 27, 1880, Thomas Edison received the historic patent embodying the principles of his incandescent lamp that paved the way for the universal domestic use of electric light.| National Archives
It has been a common misconception for many years that the Chinese language (Mandarin) is the most difficult language to learn. Although I admit that it is by no means easy to learn, I believe that stigmatizing the Chinese language as the hardest to learn perpetuates xenophobic ideologies rooted in early immigration laws directly targeting...| The University News