May 4, 1904: U.S. Dives Into Panama Canal | WIRED
Panama Canal - American intervention | Britannica
Digging Across Panama | The National Endowment for the Humanities
How the Panama Canal Makes Water Flow Uphill | HowStuffWorks
7 Fascinating Facts About the Panama Canal - HISTORY
Gallery: 100 years of the Panama Canal in 10 photos | PBS NewsHour
Somebody Dying Every Day - Panama Exhibit Site
Why the Construction of the Panama Canal Was So Difficult—and Deadly - HISTORY
A timeline of the Panama Canal - Los Angeles Times
Digging Across Panama | The National Endowment for the Humanities
Construction of the Panama Canal. Photo credit
Panama Canal timeline | Timetoast timelines
How the Panama Canal Makes Water Flow Uphill | HowStuffWorks
American History USA
History of the Panama Canal - Wikipedia
The Panama Canal's Forgotten Casualties | by Timeline | Timeline
Panama Canal | Definition, History, Treaty, Map, Locks, & Facts | Britannica
The construction of Panama Canal in rare pictures, 1881-1914 - Rare Historical Photos
Panama Canal - Wikipedia
Digging Across Panama | The National Endowment for the Humanities
The Nuclear Canal: When Scientists Thought H-Bombs Would Make Awesome Earthmovers | KQED
Panama Canal | Definition, History, Treaty, Map, Locks, & Facts | Britannica
