Test your understanding of the concept of common knowledge with this quiz. Read each of the following items and determine whether the information is common knowledge or whether it would need to be cited. If it is common knowledge, click on "Common Knowledge." If the information needs to be cited, click on "Should Be Cited."

Women and minorities make up 52 percent of the workers in Canadian businesses.
1 Common Knowledge 2 Should Be Cited			Answer choices for questions 1 through 2
Millions of soldiers died in the trenches of the western front during World War I.
3 Common Knowledge 4 Should Be Cited			Answer choices for questions 3 through 4
Six months after hitting the jackpot, lottery winners typically find their level of happiness no different than it was before their windfall.
5 Common Knowledge 6 Should Be Cited			Answer choices for questions 5 through 6
The cod fishery in Newfoundland collapsed in the early 1990s.
7 Common Knowledge 8 Should Be Cited			Answer choices for questions 7 through 8
Mohandas K. Gandhi was assassinated in 1948.
9 Common Knowledge 10 Should Be Cited			Answer choices for questions 9 through 10
Male students in classes at Harvard Medical School in the fall of 1850 objected to the presence of Harriet Hunt, the first female student admitted there.
11 Common Knowledge 12 Should Be Cited			Answer choices for questions 11 through 12
Smoking kills over 418,000 people every year in the United States.
13 Common Knowledge 14 Should Be Cited			Answer choices for questions 13 through 14
Under the Taliban government, playing popular music was illegal in Afghanistan.
15 Common Knowledge 16 Should Be Cited			Answer choices for questions 15 through 16
The cheetah is the fastest-moving land animal.
17 Common Knowledge 18 Should Be Cited			Answer choices for questions 17 through 18
A twenty-year Swiss study of organic farming found that organic farms yielded more produce per unit of energy consumed than farms that did not use organic farming methods.
19 Common Knowledge 20 Should Be Cited			Answer choices for questions 19 through 20