Black Fact = 1923 (Nov.20) – Garrett A. Morgan patented the Traffic Signal on this date in 1923. This three-way signal completely changed traffic control and was sold to General Electric for $40,000. Patent # 1,475,024. #theraydiotwins








Black Fact = 1923 (Nov.20) – Garrett A. Morgan patented the Traffic Signal on this date in 1923. This three-way signal completely changed traffic control and was sold to General Electric for $40,000. Patent # 1,475,024. #theraydiotwins