"The Pantheon’s dome in Rome, a breathtaking testament to ancient ingenuity. Erected nearly two millennia ago, it reigns as the largest unreinforced concrete dome ever crafted, standing tall at an astonishing 43 meters (141 feet) in both diameter and height. This architectural masterpiece is not just an edifice; it is an enduring source of inspiration. The Romans may not have been the originators of concrete, but they transformed it into an art form using a remarkable blend as described by Vitruvius—lime, pozzolana, and select aggregates forged into a material of unparalleled strength. The dome's ability to withstand the test of time, sans any modern supports, is a testament to the brilliance of Roman engineering, showcasing the extraordinary skill and vision of its builders."
Actually the dates of artifacts of coastal Aladsk natives (fish trap pegs, and lithographic remains, date back between 20-30,000. There is also new discoveries made with carbon dating man made objects from high mountain areas (which were closer to the water before geological processes). Novice kids who learned random information in proven historically inaccurate textbooks need to shut up or bother to learn the modern facts. Modern science beings all kinds of historical lies to forefront .
*Alaska
Actually the dates of artifacts of coastal Aladsk natives (fish trap pegs, and lithographic remains, date back between 20-30,000. There is also new discoveries made with carbon dating man made objects from high mountain areas (which were closer to the water before geological processes). Novice kids who learned random information in proven historically inaccurate textbooks need to shut up or bother to learn the modern facts. Modern science beings all kinds of historical lies to forefront .
*Alaska