On 24 July 1874, a Canadian patent was filed by Henry Woodward and Mathew Evans for a lamp consisting of carbon rods mounted in a nitrogen-filled glass cylinder. They were unsuccessful at commercializing their lamp, and sold rights to their patent (U.S. Patent 0,181,613) to Thomas Edison in 1879.
Churchill was born on 30 November 1874 at his family's ancestral home, Blenheim Palace in Oxfordshire. As direct descendants of the Dukes of Marlborough, his family were among the highest levels of the British aristocracy. His father, Lord Randolph Churchill, had been elected Conservative MP for Woodstock in 1873. His mother, Jennie, was daughter of Leonard Jerome, a wealthy American businessman.