Who Invented It: Jesse Langsdorf
Year Introduced: 1924

While the necktie's roots can be traced to cravats worn by Croatian mercenaries in the Thirty Years' War, the modern necktie was invented by tailor Jesse Langsdorf, who came up with the concept of cutting fabric on a bias and then sewing it in three segments. At the time, ascots were much more popular, but this innovation, combined with new construction methods like the slipstitch, led to the cleaner silhouette of the "Langsdorf" tie becoming prevalent.