Best Inventions of All Time
Five Ancient Inventions We Still Can't Improve: Roman Concrete, Greek Fire, and More
Aug 1, 202617 min
Think ancient civilizations were primitive? Think again. From self-healing Roman concrete that outlasts modern formulas to the terrifying Byzantine weapon called Greek Fire whose recipe was lost forever, we're counting down five ancient inventions so advanced that even with our modern labs and supercomputers, we still haven't cracked their secrets—or beaten their performance.
