1. What motivated the United States to build the Panama Canal?
please answer in 4-5 sentences

Following the failure of a French construction team in the 1880s, the United States commenced building a canal across a 50-mile stretch of the Panama isthmus in 1904. The project was helped by the elimination of disease-carrying mosquitoes, while chief engineer John Stevens devised innovative techniques and spurred the crucial redesign from a sea-level to a lock canal. His successor, Lt. Col. George Washington Goethals, stepped up excavation efforts of a stubborn mountain range and oversaw the building of the dams and locks. Opened in 1914, oversight of the world-famous Panama Canal was transferred from the U.S. to Panama in 1999.

River valleys were good places for hunting and fishing.

Thomas edison created the light bulb.