Wall Street crashes?"Black Tuesday"?throwing the world's economy into a years-long crisis including an unemployment rate in the U.S. that by 1933 hit nearly 25 percent - 1929
The Gateway Arch, a 630-foot high parabola of stainless steel marking the Jefferson National Expansion Memorial on the waterfront of St. Louis, Mo., is completed after two and one-half years.
After eight years and at least 1,000 worker deaths?mostly Irish immigrants?the 350-mile Erie Canal opens, linking the Great Lakes and the Atlantic Ocean.