Key topic 1 · The creation and successes of the League, 1919–29

What a Grade 9 answer knows here. The League's president was American and America never joined. Its successes in the 1920s were all disputes between small states that wanted them settled, which defines exactly the limit tested in the 1930s.

Every lesson here ends the same way: learn it, teach it to an AI pupil who asks the awkward question, then defend it against the thinker with the strongest claim on it — free · no account needed.

2 lessons, each answering one essential question with the story, the dates that earn marks, the people to place, how historians disagree and the cap in the mark scheme that bites. Completely free.

The 2 lessons

Wilson, the Covenant and the structure of the League

What kind of organisation requires everyone to agree before it can do anything? The League was one answer to a question the First World War had made urgent: whether a mechanism could be built that would stop states going to war by accident, by alliance or by miscalculation.

Examined through causation and change. Learn Wilson, the Covenant and the structure of the League →

The successes of the 1920s and the agencies

What do the League's successes have in common, and what does that predict about the 1930s? The Aaland Islands, between Sweden and Finland, were disputed in 1920: the population was Swedish-speaking and the islands had been part of Finland under Russian rule.

Examined through significance. Learn the successes of the 1920s and the agencies →

The dates that earn marks in this key topic

Two from each lesson, in the order the topic is taught — each with the reason it is worth a mark, and the lesson that places it.

1919 — The Covenant is written into the Treaty of Versailles as its first part.: It ties the League legally to a settlement its future opponents regarded as unjust. (Wilson, the Covenant and the structure of the League)
March 1920 — The United States Senate rejects the Treaty; America never joins.: The organisation begins without the largest economy in the world, which weakens every sanction it can impose. (Wilson, the Covenant and the structure of the League)
1920–21 — The Aaland Islands and Upper Silesia are settled by League decision.: Both disputes involved small states willing to accept an award, which is the pattern in every 1920s success. (The successes of the 1920s and the agencies)
1922 — The Nansen passport is introduced for stateless refugees.: It is the League's most durable single achievement and it addressed a problem no single state could solve. (The successes of the 1920s and the agencies)

The people to place

Woodrow Wilson — American President; insisted the Covenant be written into the peace treaties. (Wilson, the Covenant and the structure of the League)
Henry Cabot Lodge — Senate leader whose opposition helped defeat American ratification. (Wilson, the Covenant and the structure of the League)
Fridtjof Nansen — League High Commissioner for Refugees; created the passport that bears his name. (The successes of the 1920s and the agencies)

What students say — and what is actually the case

“The League failed because it had no army.” — It had no army by design, and in the 1920s it settled disputes without one. The 1930s failures came where members would not apply the economic measures the Covenant did provide. (Wilson, the Covenant and the structure of the League)
“The League had no successes.” — It settled the Aaland Islands, Upper Silesia and the Greek-Bulgarian dispute, ran the Saar, and created the Nansen passport recognised by more than fifty states. (The successes of the 1920s and the agencies)

What the specification asks for

The clauses of 4HI1 this key topic examines, one per lesson. Incandio is aligned to the specification and is not published by Pearson.

“Woodrow Wilson and the setting up of the League. The Covenant of the League of Nations. Membership; Assembly, Council, Secretariat, League agencies and commissions.” — Wilson, the Covenant and the structure of the League
“Successes of the League, including the Aaland Islands (1920), Upper Silesia (1921), the Greek-Bulgarian War (1925), Refugee and Drugs Committees.” — The successes of the 1920s and the agencies

Then teach it, and defend it

Every lesson above ends the same way: you explain the argument to Ember, an AI pupil who asks the awkward question, and defend it in a structured debate marked against published descriptors.

All of The changing role of international organisations: the league and the UN, 1919–c2011 · Incandio History · The 4HI1 specification