["HISTORY \/ Historical Geography","HISTORY \/ Latin America \/ Central America","HISTORY \/ Modern \/ 20th Century \/ General","History\/Latin America - Central America","History\/Modern - 20th Century - General","TECHNOLOGY & ENGINEERING \/ Engineering (General)","Technology & Engineering\/Engineering (General)","Panama Canal (Panama);History.","Panama Canal;History.","20th Century","Central America","Engineering (General)","General","General Adult","HISTORY","HISTORY \/ Historical Geography","HISTORY \/ Latin America \/ Central America","HISTORY \/ Modern \/ 20th Century \/ General","Hispanic\/Latino","History\/Latin America - Central America","History\/Modern - 20th Century - General","History\/World","Latin America","Latin America - Central America","Modern","Modern - 20th Century - General","Non-Fiction","Panama Canal (Panama) - History","Panama Canal (Panama);History.","Panama Canal; making of Panama Canal; Creation of Panama Canal; National Book Award winner; passageway; Atlantic Ocean; Pacific Ocean; feats of engineering; Gold Rush; Walter Reed; George Washington Goethals; Ferdinand de Lesseps; bestselling history; pulitzer prize; aquatic passageway; waterway; maritime trade; shortcut for ships; lock-type canal","Panama Canal;History.","TECHNOLOGY & ENGINEERING","TECHNOLOGY & ENGINEERING \/ Engineering (General)","Technology & Engineering\/Engineering (General)","History"]