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On January 27, 1880, Thomas Edison was granted a patent for his invention of the light bulb. However, his claim to this invention has faced scrutiny since his passing. The Canadian government argues that the true inventors were Henry Woodward and Mathew Evans, who, after struggling to achieve commercial viability, sold the patent to Edison. Furthermore, Edison acknowledged the contributions of William Hammer, an electrical engineer working for him, as a key figure in the development of the technology. This ongoing debate raises questions about the ownership and authenticity of Edison’s so-called inventions.