Construction on Hoover Dam (originally Boulder Dam, subsequently renamed for the president who authorized the project) began in 1931 in a canyon 45 miles (72 km) southeast of Las Vegas.
President Hoover was particularly pleased to have his name engraved in history.
mnli hypothesis: President Hoover was particularly pleased to have his name engraved in history. premise: Construction on Hoover Dam (originally Boulder Dam, subsequently renamed for the president who authorized the project) began in 1931 in a canyon 45 miles (72 km) southeast of Las Vegas.