The tensions of the long nineteenth century produced two world wars and made the early twentieth century and era of global conflict.

The First and Second World Wars were separated by a period of uneasy peace. But the two wars and the intervening peace were entangled together. Should we study these three periods as a single connected conflict?

Orient yourself in time and space as you begin Unit 7, by using maps to make predictions about the causes and casualties of the First World War.

A black and white version of the world in 1914 CE, that can be cropped to specific regions and easily printed.

A full-color political map of the world in 1914 CE, highlighting the major states, communities, and cities you’ll learn about in WHP.

An individualized tracker for new word encountered in Unit 7. Add to it as the unit progresses.

In Unit 7, continue the routine of building a class word wall, an important visual cue and literacy support.

This vocab guide provides a summary of the key vocabulary for the unit.

Vocab cards for each of the key words in this unit.

With the twentieth century, we can see three big shifts in power both within and among societies. What caused these transformations, and how should we understand them?

It’s time to evaluate the themes for Unit 7. Do the statements relate to governance, culture, or some other theme? That’s for you to decide!

Today, most people in the world live in democracies, and most governments in the world are democratic. The data shows that this transition to democracy happened only recently.

It’s time to select your final project topic. Identify a topic with world historical significance that’s meaningful to you.

Revisit the Question Parsing Tool and improve your ability to figure out what you are being asked in writing prompts.

The First World War feels almost like a murder mystery, with many suspected causes, and complex motives. Millions of lives were lost in this confusing conflict that gripped the world.

In the summer of 1914, things got pretty heated. Serbian nationalists and an Austrian archduke unleashed tensions that had simmered in Europe for decades.

How does a regular war become a world war? It’s a tough question to answer, but asking who fought, what they fought for, and where they fought should give you a fighting chance.

The First World War transformed British society. Nick Dennis explores why Britain entered the conflict and how people in Britain experienced the war.

The outcome of World War I wasn’t decided in Southeast Asia. But it was a world war, and it had significant impacts on the region.

The First World War helped lay the foundations for the modern Middle East. Imperialism, religion, and nationalism all played a role in shaping the region during this conflict.

Time to break out the yarn again! The interconnected nature of World War I becomes even more apparent when you visually mark out the various ways regions and countries were connected.

Why did World War I begin? It’s your opportunity to make a claim!

In many ways World War I was a total war. Entire societies were mobilized to support the war effort. There had never been a war that was so devastating.

Helen Fairchild was an American nurse who volunteered for the First World War and gave her life for her country.

Optimistically nicknamed “The War to End All Wars,” the high price tag on World War I had a far-reaching economic impact on nations and colonies around the globe.

Images can tell us a lot about a time period. Examine posters to gain deeper insight into the kinds of messages governments tried to convey through posters.

While World War I was raging across the world, the Ottoman Empire attacked its Armenian minority. Millions were murdered and displaced in the Armenian Genocide.

You’re well on your way to becoming a quick-sourcing expert! Use the Quick-Sourcing Tool to make sense of the World War I primary source collection.

World War I was quite possibly the first “total war”. How did governments mobilize their populations for this “war to end all wars”? Read these primary sources to find out!

In this activity, you’ll compare the Russian Revolution with a political revolution previously covered in the course.

The Mexican Revolution overthrew a dictator in just six months, but for the next ten years, Mexican revolutionaries fought each other to determine the outcome of the revolution.

Why does one revolution in one place in one year matter so much? The Russian Revolution in 1917 not only transformed Russia, but also set the stage for a changing world over the next one hundred years.

Ever wonder what it was like to fight in the trenches or miss a loved one who was off at war? You’ll practice using historical empathy to write a letter to someone in battle.

This activity asks you to look at various peace terms for World War I and weigh the merits of each according to diverse international interests.

When World War I started, people cheered in the streets. Their enthusiasm was soon dampened by the reality of war. The disillusionment that followed the conflict shaped our modern world.

Socialist philosopher, economist, and teacher who was jailed for opposing German entry into the First World War, Rosa Luxemburg was murdered for calling for a German republic.

You’ll investigate the context for the Great Depression, which will deepen your understanding of how both capitalism and globalization played a role in this economic crisis.

The Great Depression was a global catastrophe that affected the lives of billions around the world. It brought authoritarians to power and helped cause the Second World War.

This is the first of two quick sourcing activities in this lesson. Use the Quick-Sourcing Tool to help you make sense of the primary source collection.

How did different nations attempt to overcome economic crises after 1900? This primary source collection will help you formulate a response.

After World War I, many people had dreams of peace and international cooperation. But these dreams were not realized as the world grew more isolationist and combative.

Zoom in to a personal scale in this activity to think about identity. This will set the stage for examining developments in identity that led to nationalism in this unit.

Colonialism wasn’t just economic exploitation. It was about living in a world made to suit other people. W.E.B. DuBois explained this in The Souls of Black Folk.

Use the Quick-Sourcing Tool to analyze sources individually and as a group, which will be particularly helpful as you try to determine how unresolved tensions after the First World War may have led to the Second.

How did economic factors and changes to imperial power lead to World War II? Read the primary sources in this collection to find out!

Fascism is one of those words that gets thrown around a lot. But it is a definable concept describing a repressive form of government that helped caused the Second World War.

Communism and fascism are words that are used often in political and historical discussions, but not always correctly. Time to get it straight!

We constantly hear messages from politicians, advertisers, and influencers. Why is it so important to critically analyze these messages?

How can our feelings of responsibility and compassion help us understand how interconnected we all are? This activity will help you see how these fit together.

The Second World War was an epic conflict between two great alliances. It was a messy, grueling, and devastating war with no predictable outcome. It was also, for those involved, a very personal experience.

World War II was a total war which devastated many parts of the world on a massive scale. John Green thinks through important questions about this tragic global conflict.

Plaek Phibunsongkhram was an authoritarian Prime Minister of Thailand. He forged his own version of fascism and allied with Japan during the Second World War.

Wars are expensive, but WWII took it to another level. Here’s a look at how many nations in this devastating conflict came to embrace the idea of a “total war” economy.

This activity will help you quickly source documents to help you prepare for the AP exam. Soon you’ll be experts at this!

What are the changes and continuities in how governments waged over during this era of global conflict? The sources in this collection will help you answer this question.

Rarely do historical events have a single cause. World War II was no exception. In this activity, you’ll examine and evaluate the complex and entangled causes of global conflict.

It’s time for another SAQ practice activity! This time you’ll be analyzing data to formulate a response to an AP short-answer question.

World War II was incredibly destructive. This video uses interactive data to examine the cost of the war in lives, comparing its casualties to other conflicts in history.

The Holocaust was the murder of millions of Jews and other persecuted groups across Nazi-occupied Europe in World War II. Discussing it is among the most difficult and most necessary topics in history.

When learning about horrific events, how do we grapple with who shares responsibility?

Manuel Quezon was the leader of the Philippines during the Second World War. He took in victims of the Holocaust, against critics who saw Jews as a threat to the country.

In 1945 the United States killed hundreds of thousands of Japanese civilians with a new, powerful weapon. People have long debated if the use of the atom bomb was necessary.

Are you ready to practice your quick-sourcing skills? Assess individual sources and then decide which texts can be grouped together to help you prepare for the AP exam.

How did new innovations impact society during and after the era of global conflict? Examine the sources and formulate a response!

What’s worse than having another world war only 20 years after the first one? How about 30 years of continuous war?

After the Holocaust, the world vowed to never again permit the crime of genocide. In the many decades since, genocide and mass violence have played out again, and again. Why?

A lot of people make a lot of claims about the world wars. Here, it’s your job to evaluate some of these statements and the evidence behind them.

It’s time to revisit the themes for Unit 7. Review your statements from Part 1 and see how your thinking has changed (and how much you’ve learned along the way!).

Continue developing your understanding of CCOT, this time looking at the changes and continuities which occurred in Unit 7.

It’s time to review the map predictions you made at the beginning of the unit, as you examine a series of new maps to help you think about the unit problem.

A full-color thematic map of First World War Casualties and Alliance in 1914 CE, meant to help you support, extend, and challenge the frame narratives.

A full-color thematic map of the Second World War (November, 1942 CE), meant to help you support, extend, and challenge the frame narratives.

It’s another opportunity to analyze the Evidence, Sourcing, and Complexity of a sample essay. Get out your red pen!

Get automated feedback from Score, and hone your writing skills, as you analyze the rise of the Nazi Party in Germany.