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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] 135 kya – 100 kya: Beads in Israel and Algeria [32] 100 kya: Compound paints made in South Africa [33] [34] [35]
The Indus Valley script remains undeciphered and there are very little surviving fragments of its writing, thus any inference about scientific discoveries in that region must be made based only on archaeological digs. The following dates are approximations. The Nippur cubit-rod, c. 2650 BCE, in the Archeological Museum of Istanbul, Turkey
The Patent Act of 1836 (Ch. 357, 5 Stat. 117) further clarified United States patent law to the extent of establishing a patent office where patent applications are filed, processed, and granted, contingent upon the language and scope of the claimant's invention, for a patent term of 14 years with an extension of up to an additional seven years.
Made from carved wood, 1880-1890 (top) and Caribou antler 1000-1800 (bottom) (Wikimedia Commons/Jaredzimmerman (WMF)) Springtime in the Arctic is beautiful. The sun once again breaks over the ...
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 ...
approximately 1893: The selenium phototube invention allows the conversion of brightness values into electrical signals. The principle is applied in wirephoto and television technology for a short time. Selenium is used in light meters for the next 50 years.
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;