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Contemporary History: Our World from 1945 to Today

Contemporary history covers 1945 to the present. After the Second World War the UN was founded and colonies became free nations. The Cold War split the world; in Central and Eastern Europe communist parties took power and ruled as one-party states. Protest movements such as Poland’s Solidarity led to the changes of 1989–91. Since then globalisation, the internet and shared global problems have shaped our world.

🎬 Step-by-step story

  1. Contemporary history runs from 1945 to today. We can split it into eras: Cold War and decolonisation, globalisation, and the digital age.
  2. 1945: the United Nations is founded. Colonies win freedom one after another, and the number of nations grows fast.
  3. In Central and Eastern Europe, communist parties take power with Soviet support. One party rules, the press is censored and the state plans the economy.
  4. People push back: strikes, Solidarity in Poland (1980), round-table talks and elections (1989). The Wall falls and in 1991 the USSR ends.
  5. Around the year 2000 the world becomes linked by trade, travel and the internet – and faces shared problems like terrorism, crises, climate change and pandemics.
  6. Try it: move the year slider and watch UN members, world population and internet users change.

Tip: drag the 3D scene to turn it. Use two fingers to zoom.

🤔 Common doubts, cleared

Why do historians start contemporary history in 1945?

Because the war’s end created a new world order: the UN, two superpowers and fast decolonisation. The timeline in step 1 starts there.

If people were unhappy, why did one-party rule last so long?

Censorship, secret police and the threat of Soviet troops kept control (step 3). Protests were often stopped by force.

Was the end of communism in Europe violent?

Mostly not. In Poland it came through strikes, talks and elections (step 4); Romania in 1989 was a violent exception.

Is globalisation good or bad?

Both: it brought trade, jobs and the internet, but also shared risks such as crises and pandemics (step 5).

How fast did the internet spread?

From under 1% of people in 1995 to about two-thirds by 2025 – try the slider in the last step.

What is contemporary history?

Contemporary history is the history of our own times, usually from 1945 (end of the Second World War) to today. Many people who lived through it are still alive, so historians use not only documents but also oral history (interviews), photos, film and digital sources.

Main eras: post-war rebuilding (1945–47), the Cold War and decolonisation (1947–1991), globalisation (1991–2008) and the digital age (since about 2008).

The post-war world: the UN and decolonisation

The United Nations was set up in 1945 to keep peace and protect human rights (Universal Declaration of Human Rights, 1948). Empires weakened, and colonies won independence: India and Pakistan (1947), Indonesia (1949), Ghana (1957), and many African countries around 1960. UN membership grew from 51 states to 193 today. Many new nations joined the Non-Aligned Movement (1961) instead of choosing a Cold War side.

Communist rule in Central and Eastern Europe

As the Soviet army pushed west in 1944–45, communist parties loyal to Moscow gained power in countries such as Poland, Hungary, Czechoslovakia and Romania. The takeover used several tools: control of the police, pressure on other parties, a rigged referendum (Poland 1946) and rigged elections (Poland 1947). By 1948 one party ruled.

Everyday life

Leaders sometimes relaxed control a little (Poland after 1956, the 1970s “opening” with foreign loans), but debt and shortages grew.

1989–91 and the world at the turn of the millennium

In 1980 strikes at the Gdańsk shipyard created Solidarity, the first free trade union in the Soviet bloc, with about 10 million members. Martial law (1981) suppressed it, but in 1989 round-table talks led to partly free elections, which Solidarity won. Within months one-party rule ended across the region; the Berlin Wall fell (November 1989) and the USSR broke up in 1991.

A linked world

After 1991: more trade (WTO 1995), the EU widened (2004) and introduced the euro, India opened its economy (1991), China grew fast, and the internet and mobile phones spread. New challenges: terrorism (11 September 2001), the 2008 financial crisis, climate change, migration and the COVID-19 pandemic (2020).

Key formulas and definitions

Worked examples

1. Why is 1945 a good starting point for contemporary history?

The Second World War ended, the UN was founded, the USA and USSR became superpowers and decolonisation sped up. The world order we still live in began to take shape.

2. Give three ways communists took power in Poland in 1944–48.

(1) Control of the security police and army with Soviet support; (2) a rigged referendum in 1946 and rigged elections in 1947; (3) pressure, arrests and merging of rival parties until one party ruled (1948).

3. Explain the chain of causes that led to 1989 in Poland.

Shortages and debt → price rises → strikes (1980) → Solidarity formed → martial law (1981) but resistance continued → deep economic crisis and reforms in the USSR (late 1980s) → round-table talks (1989) → partly free elections won by Solidarity → peaceful end of one-party rule.

Common mistakes

Practice quiz

1. Contemporary history usually begins in:
2. The UN was founded in:
3. Solidarity, a free trade union, began in Poland in:
4. The USSR broke up in:
5. Which is a feature of a one-party state?

Practice: answer these yourself

Type or choose your answer, then press Check. Use a hint if you are stuck; the full solution appears after you answer.

Frequently asked questions

What period does contemporary history cover?

Usually from 1945, the end of the Second World War, up to the present day.

What was Solidarity?

A free trade union and mass movement founded in Poland in 1980 that peacefully challenged one-party communist rule and won partly free elections in 1989.

What are the main features of the world at the turn of the millennium?

Globalisation, the spread of the internet and mobile phones, a wider EU, the rise of Asian economies, and shared problems like terrorism, financial crises and climate change.

Where this is taught

PolandSzkoła podstawowa, klasa VIIIBeginnings of communism in Poland
PolandSzkoła podstawowa, klasa VIIIPoland 1957–1981
PolandLiceum ogólnokształcące, klasa IVThe world at the turn of the millennium
PolandLiceum ogólnokształcące, klasa IVCommunist takeover in Poland 1944–1948
PolandLiceum ogólnokształcące, klasa IVPoland 1957–1981
PolandLiceum ogólnokształcące, klasa IVThe world at the turn of the millennium
PolandLiceum ogólnokształcące, klasa IVCommunist takeover in Poland 1944–1948
PolandLiceum ogólnokształcące, klasa IVPoland 1957–1981
South Korea고등학교 2학년International studies

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