The diversity of U.S. state law first became a notable problem during the late 19th-century era known as the Gilded Age, when interstate commerce was nurtured by then-novel technologies like the telegraph, the telephone, the steamship, and the railroad. Many lawyers during the Gilded Age complained about how the diversity and volume of state law hampered interstate trade and introduced complexity and inconvenience into virtually any interstate transaction (commercial or otherwise). This widespread frustration was evident at the founding of the American Bar Association in 1878; one of the ABA's original founding purposes was to promote "uniformity of legislation throughout the Union." There have been three major reactions to this problem, none of which were completely successful: codification, uniform acts, and the Restatements.