Eyewitness
Conflict
Inventions and Ideas
Causes & Origins
Historical Impacts
100

A basic, hazardous condition or element that daily industrial factory workers face.

What is pollution? (Or: Unsafe machinery)

100

The invisible, biological weapon Spanish Conquistadors unknowingly brought that devastated indigenous empires.

What is smallpox? (Or: Disease)

100

John Locke's core political concept stating that all humans are born with rights to life, liberty, and property.

What are natural rights?

100

The immediate geopolitical spark for World War I: the June 1914 assassination of this Austrian leader

Who was Archduke Franz Ferdinand

100

The 16th-century religious upheaval accelerated by the printing press that permanently fractured Western Christianity.

What is the Protestant Reformation?

200

The physical infestation or muddy ailment soldiers commonly suffered from in WWI trenches.

What is trench foot? (Or: Rats)

200

The radical machine heavily used by the Third Estate to execute enemies of the French Revolution.

What is the guillotine?

200

Montesquieu’s structural concept designed to prevent tyranny by dividing government into executive, legislative, and judicial branches.

What is separation of powers?

200

The severe shortage of this basic food staple that drove the angry Third Estate to riot in Paris.

What is bread? (Or: Food shortage)

200

The massive population shift from rural, agrarian farms to crowded, industrialized cities.

What is urbanization?

300

The specific, largest socioeconomic group that made up over 90% of the French Third Estate.

Who are peasants?

300

The dominant, gridlocked style of combat fought between the Central and Allied powers on the Western Front.

What is trench warfare?

300

the primary fossil fuel that had to be heavily mined to power James Watt's upgraded Steam Engine.

What is coal?

300

The navigation device adopted from Islamic empires that allowed European sailors to measure latitude using stars.

What is the astrolabe?

300

The harsh 1919 peace settlement that economically destroyed Germany and helped spark World War II.

What is the Versailles Treaty?

400

A major loss of autonomy or physical exploitation experienced daily by colonized people in Africa or Asia

What is forced labor? (Or: Loss of land)

400

The surprise military strike on December 7, 1941, that forced the United States to fight the Axis powers.

What is Pearl Harbor?

400

The heavily armored, tracked vehicle introduced in modern warfare to safely cross "No Man's Land."

What is the tank?

400

The primary economic motive for Western nations taking colonies in Africa and Asia during the Age of Imperialism.

What are raw materials? (Or: Natural resources)

400

The factory production method where workers repeat one specialized task, popularized by Henry Ford.

What is the assembly line?

500

The deadly, painful vitamin-deficiency disease frequently contracted by sailors spending months on exploration ships.

What is scurvy?

500

The historic 1884–1885 European meeting where imperial powers carved up Africa without any African leaders present.

What is the Berlin Conference?

500

The specific, reusable metal invention developed by Johannes Gutenberg that made the mass production of books possible.

What is movable type? or printing press

500

The 17th and 18th-century intellectual movement emphasizing reason and individualism that birthed the ideas of Locke and Montesquieu.

What is the Enlightenment?

500

The massive, permanent global transfer of plants, animals, food, and cultures triggered by European exploration after 1492.

What is the Columbian Exchange?