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However, when 2,000 years ago, during the Three Kingdoms period, the Chinese inventor Ma Jun created a chariot with a built-in compass for Emperor Ming-di, it was a real wonder.
Genetic evidence from body lice suggests a range of dates centering over 100 thousand years ago. [28] The first bone scrapers appropriate for scraping hides to make supple leather were found in Morocco dating to 90–120,000 years ago. [29] [30] 164 kya – 47 kya: Heat treating of stone blades in South Africa. [31]
The 24-year-old from Brooklyn was the first to use a new technology called digitalization to capture images. Four decades later, we carry his invention in our pockets on our phones. Courtesy of ...
The following articles cover the timeline of United States inventions: Timeline of United States inventions (before 1890), before the turn of the century; Timeline of United States inventions (1890–1945), before World War II; Timeline of United States inventions (1946–1991), during the Cold War
However, the first use of stop signs did not appear until 1915 when officials in Detroit, Michigan, installed a stop sign with black letters on a white background. Throughout the years and with many alterations made to the stop sign, the current version with white block-lettering on a red background that is used in the United States as well as ...
An AI-powered toilet seat has been named by Time Magazine as one of the top 200 inventions of 2024. It optically scans a user’s stool and urine, to detect any concerning changes that might ...
The first black person on record to have successfully performed pericardium (the sac surrounding the heart) surgery to repair a wound. [193] Williams, Marguerite Thomas: 1895–1991 Geologist: First black person to receive a Ph.D. in Geology Williams, Scott W. 1943– Mathematician [194] Williams, Walter E. 1936–2020 Economist, social scientist
Ronald Price Hickman (1932–2011), U.S. – designed the original Lotus Elan, the Lotus Elan +2 and the Lotus Europa, as well as the Black & Decker Workmate; Rowland Hill (1795–1879), UK – postage stamp; Maurice Hilleman (1919–2005) – vaccines against childhood diseases; Tanaka Hisashige (1799–1881), Japan – Myriad year clock