Fill in the blank. Sir Sandford Fleming invented the worldwide system of ______.
Answer: standard time zones
Sir Sandford Fleming invented the worldwide system of standard time zones.
All answer choices
- standard time zones (correct answer)
- the telephone
- the pacemaker
- insulin
This practice question is based on Discover Canada, the official study guide for the Canadian citizenship test. Brush up on this topic in our History study guide.
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