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The Building of the Panama Canal Trivia Questions

How much do you really know about The Building of the Panama Canal? Below are 8 true or false statements. Click each one to reveal the answer and explanation.

1.

The Panama Canal was built at sea level, with no locks needed for most of its length.

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Easy
✗ FALSE

It is a lock-and-lake canal, raising ships 85 feet above sea level via Gatun Lake, not a sea-level canal.

2.

The U.S. gave Panama full control of the canal in 1999 as part of a treaty signed by Jimmy Carter.

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Easy
✓ TRUE

The Torrijos-Carter Treaties (1977) transferred control to Panama on December 31, 1999, ending nearly a century of U.S. control.

3.

The Panama Canal was originally built by the French, who succeeded in completing it.

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Easy
✗ FALSE

The French started the canal in 1881 but failed due to disease and financial issues. The U.S. completed it in 1914.

4.

A ship traveling through the canal pays the same toll no matter how much cargo it carries.

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Medium
✗ FALSE

Tolls are based on ship size, type, and cargo capacity (in TEUs or tons). A small yacht pays far less than a massive container ship.

5.

More workers died building the Panama Canal than during the entire American Civil War.

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Medium
✓ TRUE

Over 25,000 workers died during the French and U.S. efforts, mostly from yellow fever and malaria—exceeding the ~24,000 Civil War combat deaths on the Union side.

6.

Mosquito control was the key innovation that allowed the canal to be finished after the French failed.

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Medium
✓ TRUE

Dr. William Gorgas’s mosquito eradication program drastically reduced yellow fever and malaria, enabling the U.S. to succeed where the French failed due to disease.

7.

The Panama Canal uses freshwater, not seawater, to move ships through its locks.

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Medium
✓ TRUE

Each lock chamber is filled with freshwater from Gatun Lake, not seawater, to prevent mixing saltwater ecosystems and reduce lock corrosion.

8.

The Panama Canal cut the sea voyage from New York to San Francisco by over 12,000 miles.

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Hard
✗ FALSE

It actually cut about 7,800 miles off the trip around Cape Horn—still huge, but not over 12,000.

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