Which major architectural glass manufacturer began as a mining company in the 1800s before revolutionizing the industry with float glass technology?

Test your knowledge about famous architectural product companies and their history! Many architecture firms and building product manufacturers have fascinating origin stories and brand evolutions that shaped the industry. This trivia question explores a notable brand's unexpected beginning in the world of architecture and design. Can you identify the correct origin story?

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Pilkington Glass
Saint-Gobain
Guardian Glass
AGC Inc.