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Discover the surprising origins of six inventions that are much older than commonly believed in this informative video. Learn about the early development of steam engines, contact lenses, voice-based biometric security, and other technological innovations that predate their assumed invention periods. Explore how these groundbreaking ideas evolved over time and gain a deeper understanding of the historical context surrounding each invention. Gain insights into the ingenuity of past inventors and how their work laid the foundation for modern technologies we use today.