Modern hydraulic cement was not invented by a single individual, but its evolution spans ancient history to modern industrial breakthroughs. Ancient Romans perfected early cement by mixing volcanic ash (pozzolana) with lime to build enduring underwater structures like the Colosseum and Pantheon. However, the modern cement industry was pioneered by Joseph Aspdin, a British stonemason who patented Portland Cement in 1824. He named his invention after the high-quality building stone found on the Isle of Portland in Dorset, establishing the chemical and manufacturing blueprint for modern construction materials used globally today.