Many of the materials and tools used to build America’s infrastructure are still utilized today, while new tools are being developed to improve America’s infrastructure for the future. In more recent years, the country’s innovations have been reflected not only on the land but also in the sky—in the airplanes and rockets that have enabled our country to connect to the rest of the world with greater swiftness and ease. While these latter accomplishments are in part attributable to advances in science, including in the use of titanium, the earlier ones described in this infographic were dependent on a few archetypal figures: industrial titans, inventors, and skilled tradesmen. Learn more about “The Tradesmen That Built America” from the following infographic compiled by Tulsa Welding School.